Subtract 9/25 from 63/21, Solve 3 0/21

Subtract 9/25 from 63/21

1^st number: 3 0/21, 2^nd number: 9/25

63/21 - 9/25 is 66/25.

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,
63/21 = 63 × 25/21 × 25 = 1575/525
Likewise, for the 2nd fraction, since 25 × 21 = 525,
9/25 = 9 × 21/25 × 21 = 189/525
Subtract the two like fractions:
1575/525 - 189/525 = 1575 - 189/525 = 1386/525
After reducing the fraction, the answer is 66/25
In mixed form: 216/25

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