Subtract 72/35 from 45/40
1st number: 1 5/40, 2nd number: 2 2/35
45/40 - 72/35 is -261/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
45/40 = 45 × 7/40 × 7 = 315/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
72/35 = 72 × 8/35 × 8 = 576/280 - Subtract the two like fractions:
315/280 - 576/280 = 315 - 576/280 = -261/280
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