Subtract 9/50 from 28/21
1st number: 1 7/21, 2nd number: 9/50
28/21 - 9/50 is 173/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
28/21 = 28 × 50/21 × 50 = 1400/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
9/50 = 9 × 21/50 × 21 = 189/1050 - Subtract the two like fractions:
1400/1050 - 189/1050 = 1400 - 189/1050 = 1211/1050 - After reducing the fraction, the answer is 173/150
- In mixed form: 123/150
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