Add 28/7 and 8/90
1st number: 4 0/7, 2nd number: 8/90
28/7 + 8/90 is 184/45.
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,
28/7 = 28 × 90/7 × 90 = 2520/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Add the two like fractions:
2520/630 + 56/630 = 2520 + 56/630 = 2576/630 - 2576/630 simplified gives 184/45
- So, 28/7 + 8/90 = 184/45
In mixed form: 44/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+8/90 28/7+16/90 28/14+8/90 84/7+8/90 28/7+24/90 28/21+8/90 28/7+40/90 28/35+8/90 28/7+56/90 28/49+8/90