Subtract 21/35 from 40/32, Solve 1 8/32

Subtract 21/35 from 40/32

1^st number: 1 8/32, 2^nd number: 21/35

40/32 - 21/35 is 13/20.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 35 is 1120

Next, find the equivalent fraction of both fractional numbers with denominator 1120
For the 1st fraction, since 32 × 35 = 1120,
40/32 = 40 × 35/32 × 35 = 1400/1120
Likewise, for the 2nd fraction, since 35 × 32 = 1120,
21/35 = 21 × 32/35 × 32 = 672/1120
Subtract the two like fractions:
1400/1120 - 672/1120 = 1400 - 672/1120 = 728/1120
After reducing the fraction, the answer is 13/20

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