Subtract 72/6 from 9/42
1st number: 9/42, 2nd number: 12 0/6
9/42 - 72/6 is -165/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
9/42 = 9 × 1/42 × 1 = 9/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42 - Subtract the two like fractions:
9/42 - 504/42 = 9 - 504/42 = -495/42 - After reducing the fraction, the answer is -165/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42-72/6 9/84-72/6 9/42-72/12 27/42-72/6 9/42-72/18 45/42-72/6 9/42-72/30 63/42-72/6 9/42-72/42