Subtract 15/20 from 70/10
1st number: 7 0/10, 2nd number: 15/20
70/10 - 15/20 is 25/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
70/10 = 70 × 2/10 × 2 = 140/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Subtract the two like fractions:
140/20 - 15/20 = 140 - 15/20 = 125/20 - After reducing the fraction, the answer is 25/4
- In mixed form: 61/4
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