Add 98/90 and 20/7
1st number: 1 8/90, 2nd number: 2 6/7
98/90 + 20/7 is 1243/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
20/7 = 20 × 90/7 × 90 = 1800/630 - Add the two like fractions:
686/630 + 1800/630 = 686 + 1800/630 = 2486/630 - 2486/630 simplified gives 1243/315
- So, 98/90 + 20/7 = 1243/315
In mixed form: 3298/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90+40/7 98/90+20/14 98/90+60/7 98/90+20/21 98/90+20/35 98/90+20/49