Add 4/14 and 72/80
4/14 + 72/80 is 83/70.
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,
4/14 = 4 × 40/14 × 40 = 160/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560 - Add the two like fractions:
160/560 + 504/560 = 160 + 504/560 = 664/560 - 664/560 simplified gives 83/70
- So, 4/14 + 72/80 = 83/70
In mixed form: 113/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/14+72/80 4/28+72/80 12/14+72/80 4/42+72/80 20/14+72/80 4/70+72/80 28/14+72/80 4/98+72/80