Subtract 9/90 from 81/35
1st number: 2 11/35, 2nd number: 9/90
81/35 - 9/90 is 31/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
81/35 = 81 × 18/35 × 18 = 1458/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
9/90 = 9 × 7/90 × 7 = 63/630 - Subtract the two like fractions:
1458/630 - 63/630 = 1458 - 63/630 = 1395/630 - After reducing the fraction, the answer is 31/14
- In mixed form: 23/14
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