Add 60/80 and 40/84
60/80 + 40/84 is 103/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
60/80 = 60 × 21/80 × 21 = 1260/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
40/84 = 40 × 20/84 × 20 = 800/1680 - Add the two like fractions:
1260/1680 + 800/1680 = 1260 + 800/1680 = 2060/1680 - 2060/1680 simplified gives 103/84
- So, 60/80 + 40/84 = 103/84
In mixed form: 119/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80+80/84