Subtract 21/70 from 25/8
1st number: 3 1/8, 2nd number: 21/70
25/8 - 21/70 is 113/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
25/8 = 25 × 35/8 × 35 = 875/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
21/70 = 21 × 4/70 × 4 = 84/280 - Subtract the two like fractions:
875/280 - 84/280 = 875 - 84/280 = 791/280 - After reducing the fraction, the answer is 113/40
- In mixed form: 233/40
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