Subtract 40/14 from 80/63
1st number: 1 17/63, 2nd number: 2 12/14
80/63 - 40/14 is -100/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
80/63 = 80 × 2/63 × 2 = 160/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
40/14 = 40 × 9/14 × 9 = 360/126 - Subtract the two like fractions:
160/126 - 360/126 = 160 - 360/126 = -200/126 - After reducing the fraction, the answer is -100/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-80/14 80/63-40/28 80/63-40/42 80/63-40/70 80/63-40/98