Add 80/63 and 2/45
1st number: 1 17/63, 2nd number: 2/45
80/63 + 2/45 is 46/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
80/63 = 80 × 5/63 × 5 = 400/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
2/45 = 2 × 7/45 × 7 = 14/315 - Add the two like fractions:
400/315 + 14/315 = 400 + 14/315 = 414/315 - 414/315 simplified gives 46/35
- So, 80/63 + 2/45 = 46/35
In mixed form: 111/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63+4/45 80/63+2/90 80/63+6/45 80/63+10/45 80/63+14/45