Subtract 45/21 from 75/8
1st number: 9 3/8, 2nd number: 2 3/21
75/8 - 45/21 is 405/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
75/8 = 75 × 21/8 × 21 = 1575/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
45/21 = 45 × 8/21 × 8 = 360/168 - Subtract the two like fractions:
1575/168 - 360/168 = 1575 - 360/168 = 1215/168 - After reducing the fraction, the answer is 405/56
- In mixed form: 713/56
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