Subtract 21/75 from 7/2
1st number: 3 1/2, 2nd number: 21/75
7/2 - 21/75 is 161/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 2 × 75 = 150,
7/2 = 7 × 75/2 × 75 = 525/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
21/75 = 21 × 2/75 × 2 = 42/150 - Subtract the two like fractions:
525/150 - 42/150 = 525 - 42/150 = 483/150 - After reducing the fraction, the answer is 161/50
- In mixed form: 311/50
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