Subtract 21/63 from 75/5, Solve 15 0/5

Subtract 21/63 from 75/5

1^st number: 15 0/5, 2^nd number: 21/63

75/5 - 21/63 is 44/3.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 5 × 63 = 315,
75/5 = 75 × 63/5 × 63 = 4725/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315
Subtract the two like fractions:
4725/315 - 105/315 = 4725 - 105/315 = 4620/315
After reducing the fraction, the answer is 44/3
In mixed form: 142/3

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