Subtract 84/90 from 63/7
1st number: 9 0/7, 2nd number: 84/90
63/7 - 84/90 is 121/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
63/7 = 63 × 90/7 × 90 = 5670/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
84/90 = 84 × 7/90 × 7 = 588/630 - Subtract the two like fractions:
5670/630 - 588/630 = 5670 - 588/630 = 5082/630 - After reducing the fraction, the answer is 121/15
- In mixed form: 81/15
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