Add 7/10 and 8/9
7/10 + 8/9 is 143/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
8/9 = 8 × 10/9 × 10 = 80/90 - Add the two like fractions:
63/90 + 80/90 = 63 + 80/90 = 143/90 - So, 7/10 + 8/9 = 143/90
In mixed form: 153/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+8/9 7/10+16/9 7/20+8/9 7/10+8/18 21/10+8/9 7/10+24/9 7/30+8/9 7/10+8/27 35/10+8/9 7/10+40/9 7/50+8/9 7/10+8/45 49/10+8/9 7/10+56/9 7/70+8/9 7/10+8/63