Subtract 42/90 from 28/3
1st number: 9 1/3, 2nd number: 42/90
28/3 - 42/90 is 133/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
28/3 = 28 × 30/3 × 30 = 840/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Subtract the two like fractions:
840/90 - 42/90 = 840 - 42/90 = 798/90 - After reducing the fraction, the answer is 133/15
- In mixed form: 813/15
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