Subtract 63/70 from 75/20
1st number: 3 15/20, 2nd number: 63/70
75/20 - 63/70 is 57/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
75/20 = 75 × 7/20 × 7 = 525/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
63/70 = 63 × 2/70 × 2 = 126/140 - Subtract the two like fractions:
525/140 - 126/140 = 525 - 126/140 = 399/140 - After reducing the fraction, the answer is 57/20
- In mixed form: 217/20
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