Subtract 21/20 from 63/35
1st number: 1 28/35, 2nd number: 1 1/20
63/35 - 21/20 is 3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
63/35 = 63 × 4/35 × 4 = 252/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Subtract the two like fractions:
252/140 - 147/140 = 252 - 147/140 = 105/140 - After reducing the fraction, the answer is 3/4
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