Subtract 42/10 from 18/75
1st number: 18/75, 2nd number: 4 2/10
18/75 - 42/10 is -99/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 10 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
18/75 = 18 × 2/75 × 2 = 36/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
42/10 = 42 × 15/10 × 15 = 630/150 - Subtract the two like fractions:
36/150 - 630/150 = 36 - 630/150 = -594/150 - After reducing the fraction, the answer is -99/25
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