Subtract 20/25 from 32/21, Solve 1 11/21

Subtract 20/25 from 32/21

1^st number: 1 11/21, 2^nd number: 20/25

32/21 - 20/25 is 76/105.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 21 × 25 = 525,
32/21 = 32 × 25/21 × 25 = 800/525
Likewise, for the 2nd fraction, since 25 × 21 = 525,
20/25 = 20 × 21/25 × 21 = 420/525
Subtract the two like fractions:
800/525 - 420/525 = 800 - 420/525 = 380/525
After reducing the fraction, the answer is 76/105

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