Subtract 30/72 from 90/56
1st number: 1 34/56, 2nd number: 30/72
90/56 - 30/72 is 25/21.
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,
30/72 = 30 × 7/72 × 7 = 210/504 - Subtract the two like fractions:
810/504 - 210/504 = 810 - 210/504 = 600/504 - After reducing the fraction, the answer is 25/21
- In mixed form: 14/21
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