Subtract 90/45 from 80/50
1st number: 1 30/50, 2nd number: 2 0/45
80/50 - 90/45 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
80/50 = 80 × 9/50 × 9 = 720/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
90/45 = 90 × 10/45 × 10 = 900/450 - Subtract the two like fractions:
720/450 - 900/450 = 720 - 900/450 = -180/450 - After reducing the fraction, the answer is -2/5
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