Subtract 90/21 from 56/16
1st number: 3 8/16, 2nd number: 4 6/21
56/16 - 90/21 is -11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
56/16 = 56 × 21/16 × 21 = 1176/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336 - Subtract the two like fractions:
1176/336 - 1440/336 = 1176 - 1440/336 = -264/336 - After reducing the fraction, the answer is -11/14
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