Subtract 45/28 from 70/63
1st number: 1 7/63, 2nd number: 1 17/28
70/63 - 45/28 is -125/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Subtract the two like fractions:
280/252 - 405/252 = 280 - 405/252 = -125/252
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