Subtract 42/15 from 30/9
1st number: 3 3/9, 2nd number: 2 12/15
30/9 - 42/15 is 8/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
30/9 = 30 × 5/9 × 5 = 150/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Subtract the two like fractions:
150/45 - 126/45 = 150 - 126/45 = 24/45 - After reducing the fraction, the answer is 8/15
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