Subtract 63/50 from 21/80
1st number: 21/80, 2nd number: 1 13/50
21/80 - 63/50 is -399/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
63/50 = 63 × 8/50 × 8 = 504/400 - Subtract the two like fractions:
105/400 - 504/400 = 105 - 504/400 = -399/400
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