Subtract 30/9 from 42/45
1st number: 42/45, 2nd number: 3 3/9
42/45 - 30/9 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
42/45 = 42 × 1/45 × 1 = 42/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
30/9 = 30 × 5/9 × 5 = 150/45 - Subtract the two like fractions:
42/45 - 150/45 = 42 - 150/45 = -108/45 - After reducing the fraction, the answer is -12/5
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