Subtract 50/21 from 7/8
1st number: 7/8, 2nd number: 2 8/21
7/8 - 50/21 is -253/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
7/8 = 7 × 21/8 × 21 = 147/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
50/21 = 50 × 8/21 × 8 = 400/168 - Subtract the two like fractions:
147/168 - 400/168 = 147 - 400/168 = -253/168
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