Add 84/14 and 21/80
1st number: 6 0/14, 2nd number: 21/80
84/14 + 21/80 is 501/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
84/14 = 84 × 40/14 × 40 = 3360/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560 - Add the two like fractions:
3360/560 + 147/560 = 3360 + 147/560 = 3507/560 - 3507/560 simplified gives 501/80
- So, 84/14 + 21/80 = 501/80
In mixed form: 621/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+42/80 84/28+21/80 84/14+63/80 84/42+21/80 84/70+21/80 84/98+21/80