Subtract 12/45 from 18/7
1st number: 2 4/7, 2nd number: 12/45
18/7 - 12/45 is 242/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
18/7 = 18 × 45/7 × 45 = 810/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Subtract the two like fractions:
810/315 - 84/315 = 810 - 84/315 = 726/315 - After reducing the fraction, the answer is 242/105
- In mixed form: 232/105
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