Subtract 60/7 from 40/6
1st number: 6 4/6, 2nd number: 8 4/7
40/6 - 60/7 is -40/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
60/7 = 60 × 6/7 × 6 = 360/42 - Subtract the two like fractions:
280/42 - 360/42 = 280 - 360/42 = -80/42 - After reducing the fraction, the answer is -40/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-60/7 40/12-60/7 40/6-60/14 40/18-60/7 40/6-60/21 40/30-60/7 40/6-60/35 40/42-60/7 40/6-60/49