Add 8/90 and 8/7
1st number: 8/90, 2nd number: 1 1/7
8/90 + 8/7 is 388/315.
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,
8/90 = 8 × 7/90 × 7 = 56/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
8/7 = 8 × 90/7 × 90 = 720/630 - Add the two like fractions:
56/630 + 720/630 = 56 + 720/630 = 776/630 - 776/630 simplified gives 388/315
- So, 8/90 + 8/7 = 388/315
In mixed form: 173/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90+8/7 8/90+16/7 8/90+8/14 24/90+8/7 8/90+24/7 8/90+8/21 40/90+8/7 8/90+40/7 8/90+8/35 56/90+8/7 8/90+56/7 8/90+8/49