Subtract 80/18 from 90/25
1st number: 3 15/25, 2nd number: 4 8/18
90/25 - 80/18 is -38/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
90/25 = 90 × 18/25 × 18 = 1620/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
80/18 = 80 × 25/18 × 25 = 2000/450 - Subtract the two like fractions:
1620/450 - 2000/450 = 1620 - 2000/450 = -380/450 - After reducing the fraction, the answer is -38/45
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