Add 63/70 and 14/80
63/70 + 14/80 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
63/70 = 63 × 8/70 × 8 = 504/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
14/80 = 14 × 7/80 × 7 = 98/560 - Add the two like fractions:
504/560 + 98/560 = 504 + 98/560 = 602/560 - 602/560 simplified gives 43/40
- So, 63/70 + 14/80 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70+28/80 63/70+42/80 63/70+70/80 63/70+98/80