Subtract 21/10 from 84/75
1st number: 1 9/75, 2nd number: 2 1/10
84/75 - 21/10 is -49/50.
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,
84/75 = 84 × 2/75 × 2 = 168/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
21/10 = 21 × 15/10 × 15 = 315/150 - Subtract the two like fractions:
168/150 - 315/150 = 168 - 315/150 = -147/150 - After reducing the fraction, the answer is -49/50
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