Subtract 21/56 from 35/18, Solve 1 17/18

Subtract 21/56 from 35/18

1^st number: 1 17/18, 2^nd number: 21/56

35/18 - 21/56 is 113/72.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 18 × 28 = 504,
35/18 = 35 × 28/18 × 28 = 980/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504
Subtract the two like fractions:
980/504 - 189/504 = 980 - 189/504 = 791/504
After reducing the fraction, the answer is 113/72
In mixed form: 141/72

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