Subtract 28/10 from 42/75
1st number: 42/75, 2nd number: 2 8/10
42/75 - 28/10 is -56/25.
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,
42/75 = 42 × 2/75 × 2 = 84/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
28/10 = 28 × 15/10 × 15 = 420/150 - Subtract the two like fractions:
84/150 - 420/150 = 84 - 420/150 = -336/150 - After reducing the fraction, the answer is -56/25
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