Add 90/7 and 14/80
1st number: 12 6/7, 2nd number: 14/80
90/7 + 14/80 is 3649/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
90/7 = 90 × 80/7 × 80 = 7200/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
14/80 = 14 × 7/80 × 7 = 98/560 - Add the two like fractions:
7200/560 + 98/560 = 7200 + 98/560 = 7298/560 - 7298/560 simplified gives 3649/280
- So, 90/7 + 14/80 = 3649/280
In mixed form: 139/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+28/80 90/14+14/80 90/7+42/80 90/21+14/80 90/7+70/80 90/35+14/80 90/7+98/80 90/49+14/80