Subtract 30/75 from 21/10
1st number: 2 1/10, 2nd number: 30/75
21/10 - 30/75 is 17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 10 × 15 = 150,
21/10 = 21 × 15/10 × 15 = 315/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
30/75 = 30 × 2/75 × 2 = 60/150 - Subtract the two like fractions:
315/150 - 60/150 = 315 - 60/150 = 255/150 - After reducing the fraction, the answer is 17/10
- In mixed form: 17/10
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