Subtract 30/90 from 81/35
1st number: 2 11/35, 2nd number: 30/90
81/35 - 30/90 is 208/105.
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,
30/90 = 30 × 7/90 × 7 = 210/630 - Subtract the two like fractions:
1458/630 - 210/630 = 1458 - 210/630 = 1248/630 - After reducing the fraction, the answer is 208/105
- In mixed form: 1103/105
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