Subtract 45/40 from 90/63
1st number: 1 27/63, 2nd number: 1 5/40
90/63 - 45/40 is 17/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
90/63 = 90 × 40/63 × 40 = 3600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
45/40 = 45 × 63/40 × 63 = 2835/2520 - Subtract the two like fractions:
3600/2520 - 2835/2520 = 3600 - 2835/2520 = 765/2520 - After reducing the fraction, the answer is 17/56
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