Subtract 15/21 from 63/15, Solve 4 3/15

Subtract 15/21 from 63/15

1^st number: 4 3/15, 2^nd number: 15/21

63/15 - 15/21 is 122/35.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 15 × 7 = 105,
63/15 = 63 × 7/15 × 7 = 441/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
15/21 = 15 × 5/21 × 5 = 75/105
Subtract the two like fractions:
441/105 - 75/105 = 441 - 75/105 = 366/105
After reducing the fraction, the answer is 122/35
In mixed form: 317/35

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