Subtract 45/30 from 42/75
1st number: 42/75, 2nd number: 1 15/30
42/75 - 45/30 is -47/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
42/75 = 42 × 2/75 × 2 = 84/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
45/30 = 45 × 5/30 × 5 = 225/150 - Subtract the two like fractions:
84/150 - 225/150 = 84 - 225/150 = -141/150 - After reducing the fraction, the answer is -47/50
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