Add 20/63 and 40/80
20/63 + 40/80 is 103/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
20/63 = 20 × 80/63 × 80 = 1600/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
40/80 = 40 × 63/80 × 63 = 2520/5040 - Add the two like fractions:
1600/5040 + 2520/5040 = 1600 + 2520/5040 = 4120/5040 - 4120/5040 simplified gives 103/126
- So, 20/63 + 40/80 = 103/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/63+40/80 60/63+40/80