Subtract 90/36 from 45/25
1st number: 1 20/25, 2nd number: 2 18/36
45/25 - 90/36 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
45/25 = 45 × 36/25 × 36 = 1620/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
90/36 = 90 × 25/36 × 25 = 2250/900 - Subtract the two like fractions:
1620/900 - 2250/900 = 1620 - 2250/900 = -630/900 - After reducing the fraction, the answer is -7/10
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