Subtract 20/90 from 50/15
1st number: 3 5/15, 2nd number: 20/90
50/15 - 20/90 is 28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
50/15 = 50 × 6/15 × 6 = 300/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
300/90 - 20/90 = 300 - 20/90 = 280/90 - After reducing the fraction, the answer is 28/9
- In mixed form: 31/9
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