Subtract 63/16 from 9/20
1st number: 9/20, 2nd number: 3 15/16
9/20 - 63/16 is -279/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
9/20 = 9 × 4/20 × 4 = 36/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Subtract the two like fractions:
36/80 - 315/80 = 36 - 315/80 = -279/80
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