Subtract 84/20 from 90/50
1st number: 1 40/50, 2nd number: 4 4/20
90/50 - 84/20 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
90/50 = 90 × 2/50 × 2 = 180/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
84/20 = 84 × 5/20 × 5 = 420/100 - Subtract the two like fractions:
180/100 - 420/100 = 180 - 420/100 = -240/100 - After reducing the fraction, the answer is -12/5
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