Subtract 70/75 from 42/48
42/48 - 70/75 is -7/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 75 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 48 × 25 = 1200,
42/48 = 42 × 25/48 × 25 = 1050/1200 - Likewise, for the 2nd fraction, since 75 × 16 = 1200,
70/75 = 70 × 16/75 × 16 = 1120/1200 - Subtract the two like fractions:
1050/1200 - 1120/1200 = 1050 - 1120/1200 = -70/1200 - After reducing the fraction, the answer is -7/120
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