Subtract 18/21 from 75/6
1st number: 12 3/6, 2nd number: 18/21
75/6 - 18/21 is 163/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
75/6 = 75 × 7/6 × 7 = 525/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Subtract the two like fractions:
525/42 - 36/42 = 525 - 36/42 = 489/42 - After reducing the fraction, the answer is 163/14
- In mixed form: 119/14
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