Add 6/21 and 10/80
6/21 + 10/80 is 23/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
6/21 = 6 × 80/21 × 80 = 480/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
10/80 = 10 × 21/80 × 21 = 210/1680 - Add the two like fractions:
480/1680 + 210/1680 = 480 + 210/1680 = 690/1680 - 690/1680 simplified gives 23/56
- So, 6/21 + 10/80 = 23/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+10/80 6/21+20/80 6/42+10/80 18/21+10/80 6/21+30/80 6/63+10/80 30/21+10/80 6/21+50/80 42/21+10/80 6/21+70/80