Subtract 90/25 from 70/28
1st number: 2 14/28, 2nd number: 3 15/25
70/28 - 90/25 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 25 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 28 × 25 = 700,
70/28 = 70 × 25/28 × 25 = 1750/700 - Likewise, for the 2nd fraction, since 25 × 28 = 700,
90/25 = 90 × 28/25 × 28 = 2520/700 - Subtract the two like fractions:
1750/700 - 2520/700 = 1750 - 2520/700 = -770/700 - After reducing the fraction, the answer is -11/10
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