Add 49/80 and 28/70
49/80 + 28/70 is 81/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
49/80 = 49 × 7/80 × 7 = 343/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
28/70 = 28 × 8/70 × 8 = 224/560 - Add the two like fractions:
343/560 + 224/560 = 343 + 224/560 = 567/560 - 567/560 simplified gives 81/80
- So, 49/80 + 28/70 = 81/80
In mixed form: 11/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/80+28/70 49/80+56/70 49/80+84/70