Subtract 35/18 from 18/84, Solve 18/84

Subtract 35/18 from 18/84

1^st number: 18/84, 2^nd number: 1 17/18

18/84 - 35/18 is -109/63.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252
Likewise, for the 2nd fraction, since 18 × 14 = 252,
35/18 = 35 × 14/18 × 14 = 490/252
Subtract the two like fractions:
54/252 - 490/252 = 54 - 490/252 = -436/252
After reducing the fraction, the answer is -109/63

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