Subtract 90/6 from 21/50
1st number: 21/50, 2nd number: 15 0/6
21/50 - 90/6 is -729/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 50 × 3 = 150,
21/50 = 21 × 3/50 × 3 = 63/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
90/6 = 90 × 25/6 × 25 = 2250/150 - Subtract the two like fractions:
63/150 - 2250/150 = 63 - 2250/150 = -2187/150 - After reducing the fraction, the answer is -729/50
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