Subtract 70/10 from 90/25
1st number: 3 15/25, 2nd number: 7 0/10
90/25 - 70/10 is -17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
90/25 = 90 × 2/25 × 2 = 180/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
70/10 = 70 × 5/10 × 5 = 350/50 - Subtract the two like fractions:
180/50 - 350/50 = 180 - 350/50 = -170/50 - After reducing the fraction, the answer is -17/5
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