Subtract 4/75 from 28/21
1st number: 1 7/21, 2nd number: 4/75
28/21 - 4/75 is 32/25.
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,
28/21 = 28 × 25/21 × 25 = 700/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
4/75 = 4 × 7/75 × 7 = 28/525 - Subtract the two like fractions:
700/525 - 28/525 = 700 - 28/525 = 672/525 - After reducing the fraction, the answer is 32/25
- In mixed form: 17/25
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