Subtract 84/16 from 30/7
1st number: 4 2/7, 2nd number: 5 4/16
30/7 - 84/16 is -27/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
30/7 = 30 × 16/7 × 16 = 480/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
84/16 = 84 × 7/16 × 7 = 588/112 - Subtract the two like fractions:
480/112 - 588/112 = 480 - 588/112 = -108/112 - After reducing the fraction, the answer is -27/28
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