Add 42/60 and 80/63
1st number: 42/60, 2nd number: 1 17/63
42/60 + 80/63 is 1241/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
42/60 = 42 × 21/60 × 21 = 882/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
80/63 = 80 × 20/63 × 20 = 1600/1260 - Add the two like fractions:
882/1260 + 1600/1260 = 882 + 1600/1260 = 2482/1260 - 2482/1260 simplified gives 1241/630
- So, 42/60 + 80/63 = 1241/630
In mixed form: 1611/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+80/63