Subtract 9/28 from 84/42, Solve 2 0/42

Subtract 9/28 from 84/42

1^st number: 2 0/42, 2^nd number: 9/28

84/42 - 9/28 is 47/28.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
84/42 = 84 × 2/42 × 2 = 168/84
Likewise, for the 2nd fraction, since 28 × 3 = 84,
9/28 = 9 × 3/28 × 3 = 27/84
Subtract the two like fractions:
168/84 - 27/84 = 168 - 27/84 = 141/84
After reducing the fraction, the answer is 47/28
In mixed form: 119/28

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