Add 84/14 and 72/80
1st number: 6 0/14, 2nd number: 72/80
84/14 + 72/80 is 69/10.
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,
72/80 = 72 × 7/80 × 7 = 504/560 - Add the two like fractions:
3360/560 + 504/560 = 3360 + 504/560 = 3864/560 - 3864/560 simplified gives 69/10
- So, 84/14 + 72/80 = 69/10
In mixed form: 69/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+72/80 84/42+72/80 84/70+72/80 84/98+72/80