2. Subtracting Fractions form Mixed Numbers with Similar Fractions
WITHOUT REGROUPING
Karla spent 1 4/5 hours washing cloths and 3/5 of an cooking lunch.
How much more time did she spent washing cloths than cooking lunch?
Find 1 4/5 – 3/4
1 4/5
- 3/4
1 1/5
Follow these steps:
1. Align and compare the fractions.
2. Subtract the fractions.
3. Bring down the whole numbers.
4. Reduce the answer to the lowest terms whenever possible.
Add the difference and the subtrahend to check.
Answer: 1 1/5 hours more washing cloths than cooking lunch.
4/5 > 3/5
3. Subtracting Decimals through Thousandths
Ben asked his for a piece of wood 0.4m long use for his project. Father cut this
from a piece 0.75m long. How many metres of wood was left with Ben’s
father?
Find 0.75 – 0.4
Follow these steps:
Align the decimal
points.
0.75 – 0.40
Subtract the digits in
each place-value
column from right to
left.
0.75
- 0.40
= 0.35
Write the decimal point
in the difference directly
below the decimal point
in the minuend and
subtrahend.
Answer: There was 0.35m of wood left’s of ben’s father.
Annex o to
complete
the number
of decimal
places
5. Subtracting Mixed Decimals
Gillie cut a pieces of ribbon 1.25m long from a roll of ribbon 8.45m long. How many
metres of ribbon were left in the roll?
Find: 8.45 – 1.25
Follow these steps.
Align the
decimal points.
8.45
- 1.25
Subtract the digits in
each place-value column
from right to left.
8.45
-1.25
7.20
Place the decimal point
in the directly below the
decimal point in the
minuend and subtrahend
8.45
-1.25
7.20 or 7.2
7. Subtracting Decimals through Thousandths
Ben asked his for a piece of wood 0.4m long use for his project. Father cut this
from a piece 0.75m long. How many metres of wood was left with Ben’s
father?
Find 0.75 – 0.4
Follow these steps:
Align the decimal
points.
0.75 – 0.40
Subtract the digits in
each place-value
column from right to
left.
0.75
- 0.40
= 0.35
Write the decimal point
in the difference directly
below the decimal point
in the minuend and
subtrahend.
Annex o to
complete
the number
of decimal
places
