Add 9/7 and 70/90
1st number: 1 2/7, 2nd number: 70/90
9/7 + 70/90 is 130/63.
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,
9/7 = 9 × 90/7 × 90 = 810/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630 - Add the two like fractions:
810/630 + 490/630 = 810 + 490/630 = 1300/630 - 1300/630 simplified gives 130/63
- So, 9/7 + 70/90 = 130/63
In mixed form: 24/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+70/90 9/14+70/90 27/7+70/90 9/21+70/90 45/7+70/90 9/35+70/90 63/7+70/90 9/49+70/90