Add 15/7 and 14/90
1st number: 2 1/7, 2nd number: 14/90
15/7 + 14/90 is 724/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
15/7 = 15 × 90/7 × 90 = 1350/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
14/90 = 14 × 7/90 × 7 = 98/630 - Add the two like fractions:
1350/630 + 98/630 = 1350 + 98/630 = 1448/630 - 1448/630 simplified gives 724/315
- So, 15/7 + 14/90 = 724/315
In mixed form: 294/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+14/90 15/7+28/90 15/14+14/90 45/7+14/90 15/7+42/90 15/21+14/90 75/7+14/90 15/7+70/90 15/35+14/90 15/7+98/90 15/49+14/90