Subtract 21/18 from 28/14, Solve 2 0/14

Subtract 21/18 from 28/14

1^st number: 2 0/14, 2^nd number: 1 3/18

28/14 - 21/18 is 5/6.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
28/14 = 28 × 9/14 × 9 = 252/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126
Subtract the two like fractions:
252/126 - 147/126 = 252 - 147/126 = 105/126
After reducing the fraction, the answer is 5/6

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