Add 60/70 and 50/80
60/70 + 50/80 is 83/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
60/70 = 60 × 8/70 × 8 = 480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
50/80 = 50 × 7/80 × 7 = 350/560 - Add the two like fractions:
480/560 + 350/560 = 480 + 350/560 = 830/560 - 830/560 simplified gives 83/56
- So, 60/70 + 50/80 = 83/56
In mixed form: 127/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: