Subtract 42/45 from 12/9
1st number: 1 3/9, 2nd number: 42/45
12/9 - 42/45 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
12/9 = 12 × 5/9 × 5 = 60/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
42/45 = 42 × 1/45 × 1 = 42/45 - Subtract the two like fractions:
60/45 - 42/45 = 60 - 42/45 = 18/45 - After reducing the fraction, the answer is 2/5
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