Add 7/10 and 49/80
7/10 + 49/80 is 21/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
7/10 = 7 × 8/10 × 8 = 56/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
49/80 = 49 × 1/80 × 1 = 49/80 - Add the two like fractions:
56/80 + 49/80 = 56 + 49/80 = 105/80 - 105/80 simplified gives 21/16
- So, 7/10 + 49/80 = 21/16
In mixed form: 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+49/80 7/10+98/80 7/20+49/80 21/10+49/80 7/30+49/80 35/10+49/80 7/50+49/80 49/10+49/80 7/70+49/80