Add 70/80 and 7/8
70/80 + 7/8 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 8 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
7/8 = 7 × 10/8 × 10 = 70/80 - Add the two like fractions:
70/80 + 70/80 = 70 + 70/80 = 140/80 - 140/80 simplified gives 7/4
- So, 70/80 + 7/8 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+14/8 70/80+7/16 70/80+21/8 70/80+7/24 70/80+35/8 70/80+7/40 70/80+49/8 70/80+7/56