Subtract 60/80 from 75/70
1st number: 1 5/70, 2nd number: 60/80
75/70 - 60/80 is 9/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
75/70 = 75 × 8/70 × 8 = 600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
60/80 = 60 × 7/80 × 7 = 420/560 - Subtract the two like fractions:
600/560 - 420/560 = 600 - 420/560 = 180/560 - After reducing the fraction, the answer is 9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: