Add 27/7 and 20/80
1st number: 3 6/7, 2nd number: 20/80
27/7 + 20/80 is 115/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
27/7 = 27 × 80/7 × 80 = 2160/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
20/80 = 20 × 7/80 × 7 = 140/560 - Add the two like fractions:
2160/560 + 140/560 = 2160 + 140/560 = 2300/560 - 2300/560 simplified gives 115/28
- So, 27/7 + 20/80 = 115/28
In mixed form: 43/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+20/80 27/7+40/80 27/14+20/80 81/7+20/80 27/7+60/80 27/21+20/80 27/35+20/80 27/49+20/80