Subtract 42/5 from 90/3
1st number: 30 0/3, 2nd number: 8 2/5
90/3 - 42/5 is 108/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
90/3 = 90 × 5/3 × 5 = 450/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
42/5 = 42 × 3/5 × 3 = 126/15 - Subtract the two like fractions:
450/15 - 126/15 = 450 - 126/15 = 324/15 - After reducing the fraction, the answer is 108/5
- In mixed form: 213/5
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