Subtract 9/21 from 7/50
7/50 - 9/21 is -101/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
7/50 = 7 × 21/50 × 21 = 147/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
9/21 = 9 × 50/21 × 50 = 450/1050 - Subtract the two like fractions:
147/1050 - 450/1050 = 147 - 450/1050 = -303/1050 - After reducing the fraction, the answer is -101/350
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