Add 12/14 and 72/80
12/14 + 72/80 is 123/70.
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,
12/14 = 12 × 40/14 × 40 = 480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560 - Add the two like fractions:
480/560 + 504/560 = 480 + 504/560 = 984/560 - 984/560 simplified gives 123/70
- So, 12/14 + 72/80 = 123/70
In mixed form: 153/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+72/80 12/28+72/80 36/14+72/80 12/42+72/80 60/14+72/80 12/70+72/80 84/14+72/80 12/98+72/80