Subtract 7/84 from 20/9, Solve 2 2/9

Subtract 7/84 from 20/9

1^st number: 2 2/9, 2^nd number: 7/84

20/9 - 7/84 is 77/36.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
7/84 = 7 × 3/84 × 3 = 21/252
Subtract the two like fractions:
560/252 - 21/252 = 560 - 21/252 = 539/252
After reducing the fraction, the answer is 77/36
In mixed form: 25/36

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