Subtract 20/90 from 35/30
1st number: 1 5/30, 2nd number: 20/90
35/30 - 20/90 is 17/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
35/30 = 35 × 3/30 × 3 = 105/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
105/90 - 20/90 = 105 - 20/90 = 85/90 - After reducing the fraction, the answer is 17/18
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