Subtract 18/63 from 4/2, Solve 2 0/2

Subtract 18/63 from 4/2

1^st number: 2 0/2, 2^nd number: 18/63

4/2 - 18/63 is 12/7.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 2 × 63 = 126,
4/2 = 4 × 63/2 × 63 = 252/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
18/63 = 18 × 2/63 × 2 = 36/126
Subtract the two like fractions:
252/126 - 36/126 = 252 - 36/126 = 216/126
After reducing the fraction, the answer is 12/7
In mixed form: 15/7

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