Subtract 8/18 from 35/21, Solve 1 14/21

Subtract 8/18 from 35/21

1^st number: 1 14/21, 2^nd number: 8/18

35/21 - 8/18 is 11/9.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
35/21 = 35 × 6/21 × 6 = 210/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126
Subtract the two like fractions:
210/126 - 56/126 = 210 - 56/126 = 154/126
After reducing the fraction, the answer is 11/9
In mixed form: 12/9

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