Subtract 40/50 from 28/21
1st number: 1 7/21, 2nd number: 40/50
28/21 - 40/50 is 8/15.
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,
40/50 = 40 × 21/50 × 21 = 840/1050 - Subtract the two like fractions:
1400/1050 - 840/1050 = 1400 - 840/1050 = 560/1050 - After reducing the fraction, the answer is 8/15
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