Subtract 35/21 from 6/18, Solve 6/18

Subtract 35/21 from 6/18

1^st number: 6/18, 2^nd number: 1 14/21

6/18 - 35/21 is -4/3.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
6/18 = 6 × 7/18 × 7 = 42/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
35/21 = 35 × 6/21 × 6 = 210/126
Subtract the two like fractions:
42/126 - 210/126 = 42 - 210/126 = -168/126
After reducing the fraction, the answer is -4/3

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