Subtract 10/42 from 18/9, Solve 2 0/9

Subtract 10/42 from 18/9

1^st number: 2 0/9, 2^nd number: 10/42

18/9 - 10/42 is 37/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 9 × 14 = 126,
18/9 = 18 × 14/9 × 14 = 252/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126
Subtract the two like fractions:
252/126 - 30/126 = 252 - 30/126 = 222/126
After reducing the fraction, the answer is 37/21
In mixed form: 116/21

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