Subtract 63/45 from 42/7, Solve 6 0/7

Subtract 63/45 from 42/7

1^st number: 6 0/7, 2^nd number: 1 18/45

42/7 - 63/45 is 23/5.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 7 × 45 = 315,
42/7 = 42 × 45/7 × 45 = 1890/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
63/45 = 63 × 7/45 × 7 = 441/315
Subtract the two like fractions:
1890/315 - 441/315 = 1890 - 441/315 = 1449/315
After reducing the fraction, the answer is 23/5
In mixed form: 43/5

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