Add 30/20 and 80/63
1st number: 1 10/20, 2nd number: 1 17/63
30/20 + 80/63 is 349/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
30/20 = 30 × 63/20 × 63 = 1890/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
80/63 = 80 × 20/63 × 20 = 1600/1260 - Add the two like fractions:
1890/1260 + 1600/1260 = 1890 + 1600/1260 = 3490/1260 - 3490/1260 simplified gives 349/126
- So, 30/20 + 80/63 = 349/126
In mixed form: 297/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+80/63 30/40+80/63 90/20+80/63 30/60+80/63