Subtract 21/25 from 20/56
20/56 - 21/25 is -169/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 25 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
20/56 = 20 × 25/56 × 25 = 500/1400 - Likewise, for the 2nd fraction, since 25 × 56 = 1400,
21/25 = 21 × 56/25 × 56 = 1176/1400 - Subtract the two like fractions:
500/1400 - 1176/1400 = 500 - 1176/1400 = -676/1400 - After reducing the fraction, the answer is -169/350
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