Subtract 20/90 from 84/56
1st number: 1 28/56, 2nd number: 20/90
84/56 - 20/90 is 23/18.
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,
84/56 = 84 × 45/56 × 45 = 3780/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
20/90 = 20 × 28/90 × 28 = 560/2520 - Subtract the two like fractions:
3780/2520 - 560/2520 = 3780 - 560/2520 = 3220/2520 - After reducing the fraction, the answer is 23/18
- In mixed form: 15/18
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