Subtract 10/7 from 75/45
1st number: 1 30/45, 2nd number: 1 3/7
75/45 - 10/7 is 5/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
75/45 = 75 × 7/45 × 7 = 525/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
10/7 = 10 × 45/7 × 45 = 450/315 - Subtract the two like fractions:
525/315 - 450/315 = 525 - 450/315 = 75/315 - After reducing the fraction, the answer is 5/21
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