Add 45/9 and 70/8
1st number: 5 0/9, 2nd number: 8 6/8
45/9 + 70/8 is 55/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
45/9 = 45 × 8/9 × 8 = 360/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
70/8 = 70 × 9/8 × 9 = 630/72 - Add the two like fractions:
360/72 + 630/72 = 360 + 630/72 = 990/72 - 990/72 simplified gives 55/4
- So, 45/9 + 70/8 = 55/4
In mixed form: 133/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+70/8 45/18+70/8 45/9+70/16 45/27+70/8 45/9+70/24 45/9+70/40 45/63+70/8 45/9+70/56