Subtract 60/21 from 18/2, Solve 9 0/2

Subtract 60/21 from 18/2

1^st number: 9 0/2, 2^nd number: 2 18/21

18/2 - 60/21 is 43/7.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
18/2 = 18 × 21/2 × 21 = 378/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
60/21 = 60 × 2/21 × 2 = 120/42
Subtract the two like fractions:
378/42 - 120/42 = 378 - 120/42 = 258/42
After reducing the fraction, the answer is 43/7
In mixed form: 61/7

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