Add 7/15 and 70/80
7/15 + 70/80 is 161/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
7/15 = 7 × 16/15 × 16 = 112/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Add the two like fractions:
112/240 + 210/240 = 112 + 210/240 = 322/240 - 322/240 simplified gives 161/120
- So, 7/15 + 70/80 = 161/120
In mixed form: 141/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+70/80 7/30+70/80 21/15+70/80 7/45+70/80 35/15+70/80 7/75+70/80 49/15+70/80