Subtract 12/90 from 72/56
1st number: 1 16/56, 2nd number: 12/90
72/56 - 12/90 is 121/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
72/56 = 72 × 45/56 × 45 = 3240/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
12/90 = 12 × 28/90 × 28 = 336/2520 - Subtract the two like fractions:
3240/2520 - 336/2520 = 3240 - 336/2520 = 2904/2520 - After reducing the fraction, the answer is 121/105
- In mixed form: 116/105
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