Add 45/63 and 60/80
45/63 + 60/80 is 41/28.
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,
45/63 = 45 × 80/63 × 80 = 3600/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
60/80 = 60 × 63/80 × 63 = 3780/5040 - Add the two like fractions:
3600/5040 + 3780/5040 = 3600 + 3780/5040 = 7380/5040 - 7380/5040 simplified gives 41/28
- So, 45/63 + 60/80 = 41/28
In mixed form: 113/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+60/80