Add 70/8 and 63/9
1st number: 8 6/8, 2nd number: 7 0/9
70/8 + 63/9 is 63/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
70/8 = 70 × 9/8 × 9 = 630/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
63/9 = 63 × 8/9 × 8 = 504/72 - Add the two like fractions:
630/72 + 504/72 = 630 + 504/72 = 1134/72 - 1134/72 simplified gives 63/4
- So, 70/8 + 63/9 = 63/4
In mixed form: 153/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/16+63/9 70/8+63/18 70/24+63/9 70/8+63/27 70/40+63/9 70/8+63/45 70/56+63/9