Add 63/70 and 35/80
63/70 + 35/80 is 107/80.
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,
35/80 = 35 × 7/80 × 7 = 245/560 - Add the two like fractions:
504/560 + 245/560 = 504 + 245/560 = 749/560 - 749/560 simplified gives 107/80
- So, 63/70 + 35/80 = 107/80
In mixed form: 127/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70+70/80