Add 80/49 and 42/70
1st number: 1 31/49, 2nd number: 42/70
80/49 + 42/70 is 547/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
80/49 = 80 × 10/49 × 10 = 800/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
42/70 = 42 × 7/70 × 7 = 294/490 - Add the two like fractions:
800/490 + 294/490 = 800 + 294/490 = 1094/490 - 1094/490 simplified gives 547/245
- So, 80/49 + 42/70 = 547/245
In mixed form: 257/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/49+84/70 80/98+42/70