Add 15/14 and 90/80
1st number: 1 1/14, 2nd number: 1 10/80
15/14 + 90/80 is 123/56.
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,
15/14 = 15 × 40/14 × 40 = 600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Add the two like fractions:
600/560 + 630/560 = 600 + 630/560 = 1230/560 - 1230/560 simplified gives 123/56
- So, 15/14 + 90/80 = 123/56
In mixed form: 211/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14+90/80 15/28+90/80 45/14+90/80 15/42+90/80 75/14+90/80 15/70+90/80 15/98+90/80