Add 18/7 and 10/90
1st number: 2 4/7, 2nd number: 10/90
18/7 + 10/90 is 169/63.
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,
18/7 = 18 × 90/7 × 90 = 1620/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
10/90 = 10 × 7/90 × 7 = 70/630 - Add the two like fractions:
1620/630 + 70/630 = 1620 + 70/630 = 1690/630 - 1690/630 simplified gives 169/63
- So, 18/7 + 10/90 = 169/63
In mixed form: 243/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7+10/90 18/7+20/90 18/14+10/90 54/7+10/90 18/7+30/90 18/21+10/90 90/7+10/90 18/7+50/90 18/35+10/90 18/7+70/90 18/49+10/90