Subtract 10/21 from 50/15
1st number: 3 5/15, 2nd number: 10/21
50/15 - 10/21 is 20/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
50/15 = 50 × 7/15 × 7 = 350/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105 - Subtract the two like fractions:
350/105 - 50/105 = 350 - 50/105 = 300/105 - After reducing the fraction, the answer is 20/7
- In mixed form: 26/7
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