Subtract 30/7 from 20/16
1st number: 1 4/16, 2nd number: 4 2/7
20/16 - 30/7 is -85/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
20/16 = 20 × 7/16 × 7 = 140/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
30/7 = 30 × 16/7 × 16 = 480/112 - Subtract the two like fractions:
140/112 - 480/112 = 140 - 480/112 = -340/112 - After reducing the fraction, the answer is -85/28
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