Subtract 18/8 from 20/35, Solve 20/35

Subtract 18/8 from 20/35

1^st number: 20/35, 2^nd number: 2 2/8

20/35 - 18/8 is -47/28.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 35 × 8 = 280,
20/35 = 20 × 8/35 × 8 = 160/280
Likewise, for the 2nd fraction, since 8 × 35 = 280,
18/8 = 18 × 35/8 × 35 = 630/280
Subtract the two like fractions:
160/280 - 630/280 = 160 - 630/280 = -470/280
After reducing the fraction, the answer is -47/28

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