Subtract 9/45 from 42/15
1st number: 2 12/15, 2nd number: 9/45
42/15 - 9/45 is 13/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
9/45 = 9 × 1/45 × 1 = 9/45 - Subtract the two like fractions:
126/45 - 9/45 = 126 - 9/45 = 117/45 - After reducing the fraction, the answer is 13/5
- In mixed form: 23/5
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