Subtract 98/80 from 12/7
1st number: 1 5/7, 2nd number: 1 18/80
12/7 - 98/80 is 137/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
12/7 = 12 × 80/7 × 80 = 960/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
98/80 = 98 × 7/80 × 7 = 686/560 - Subtract the two like fractions:
960/560 - 686/560 = 960 - 686/560 = 274/560 - After reducing the fraction, the answer is 137/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-98/80 12/14-98/80 36/7-98/80 12/21-98/80 60/7-98/80 12/35-98/80 84/7-98/80 12/49-98/80