Add 5/70 and 60/80
5/70 + 60/80 is 23/28.
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,
5/70 = 5 × 8/70 × 8 = 40/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
60/80 = 60 × 7/80 × 7 = 420/560 - Add the two like fractions:
40/560 + 420/560 = 40 + 420/560 = 460/560 - 460/560 simplified gives 23/28
- So, 5/70 + 60/80 = 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+60/80 15/70+60/80 25/70+60/80 35/70+60/80