Add 20/7 and 20/80
1st number: 2 6/7, 2nd number: 20/80
20/7 + 20/80 is 87/28.
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,
20/7 = 20 × 80/7 × 80 = 1600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
20/80 = 20 × 7/80 × 7 = 140/560 - Add the two like fractions:
1600/560 + 140/560 = 1600 + 140/560 = 1740/560 - 1740/560 simplified gives 87/28
- So, 20/7 + 20/80 = 87/28
In mixed form: 33/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+20/80 20/7+40/80 20/14+20/80 60/7+20/80 20/7+60/80 20/21+20/80 20/35+20/80 20/49+20/80