Subtract 20/80 from 60/84
60/84 - 20/80 is 13/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
60/84 = 60 × 20/84 × 20 = 1200/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
20/80 = 20 × 21/80 × 21 = 420/1680 - Subtract the two like fractions:
1200/1680 - 420/1680 = 1200 - 420/1680 = 780/1680 - After reducing the fraction, the answer is 13/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-40/80 60/84-60/80