Subtract 1/10 from 42/75
42/75 - 1/10 is 23/50.
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,
42/75 = 42 × 2/75 × 2 = 84/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
1/10 = 1 × 15/10 × 15 = 15/150 - Subtract the two like fractions:
84/150 - 15/150 = 84 - 15/150 = 69/150 - After reducing the fraction, the answer is 23/50
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