Subtract 21/15 from 50/56
1st number: 50/56, 2nd number: 1 6/15
50/56 - 21/15 is -71/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
50/56 = 50 × 15/56 × 15 = 750/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
21/15 = 21 × 56/15 × 56 = 1176/840 - Subtract the two like fractions:
750/840 - 1176/840 = 750 - 1176/840 = -426/840 - After reducing the fraction, the answer is -71/140
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