Subtract 72/80 from 56/45
1st number: 1 11/45, 2nd number: 72/80
56/45 - 72/80 is 31/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
56/45 = 56 × 16/45 × 16 = 896/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Subtract the two like fractions:
896/720 - 648/720 = 896 - 648/720 = 248/720 - After reducing the fraction, the answer is 31/90
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Related: 56/90-72/80