Subtract 10/75 from 42/21
1st number: 2 0/21, 2nd number: 10/75
42/21 - 10/75 is 28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
42/21 = 42 × 25/21 × 25 = 1050/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
10/75 = 10 × 7/75 × 7 = 70/525 - Subtract the two like fractions:
1050/525 - 70/525 = 1050 - 70/525 = 980/525 - After reducing the fraction, the answer is 28/15
- In mixed form: 113/15
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