Subtract 70/72 from 90/56
1st number: 1 34/56, 2nd number: 70/72
90/56 - 70/72 is 40/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
90/56 = 90 × 9/56 × 9 = 810/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Subtract the two like fractions:
810/504 - 490/504 = 810 - 490/504 = 320/504 - After reducing the fraction, the answer is 40/63
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