Subtract 21/63 from 36/2, Solve 18 0/2

Subtract 21/63 from 36/2

1^st number: 18 0/2, 2^nd number: 21/63

36/2 - 21/63 is 53/3.

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,
36/2 = 36 × 63/2 × 63 = 2268/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126
Subtract the two like fractions:
2268/126 - 42/126 = 2268 - 42/126 = 2226/126
After reducing the fraction, the answer is 53/3
In mixed form: 172/3

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