Subtract 20/84 from 35/18, Solve 1 17/18

Subtract 20/84 from 35/18

1^st number: 1 17/18, 2^nd number: 20/84

35/18 - 20/84 is 215/126.

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

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 18 × 14 = 252,
35/18 = 35 × 14/18 × 14 = 490/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252
Subtract the two like fractions:
490/252 - 60/252 = 490 - 60/252 = 430/252
After reducing the fraction, the answer is 215/126
In mixed form: 189/126

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