Subtract 3/63 from 30/7, Solve 4 2/7

Subtract 3/63 from 30/7

1^st number: 4 2/7, 2^nd number: 3/63

30/7 - 3/63 is 89/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
3/63 = 3 × 1/63 × 1 = 3/63
Subtract the two like fractions:
270/63 - 3/63 = 270 - 3/63 = 267/63
After reducing the fraction, the answer is 89/21
In mixed form: 45/21

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