Add 80/14 and 42/63
1st number: 5 10/14, 2nd number: 42/63
80/14 + 42/63 is 134/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
80/14 = 80 × 9/14 × 9 = 720/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
42/63 = 42 × 2/63 × 2 = 84/126 - Add the two like fractions:
720/126 + 84/126 = 720 + 84/126 = 804/126 - 804/126 simplified gives 134/21
- So, 80/14 + 42/63 = 134/21
In mixed form: 68/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14+84/63 80/28+42/63 80/42+42/63 80/70+42/63 80/98+42/63