Add 8/80 and 70/63
1st number: 8/80, 2nd number: 1 7/63
8/80 + 70/63 is 109/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
8/80 = 8 × 63/80 × 63 = 504/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
70/63 = 70 × 80/63 × 80 = 5600/5040 - Add the two like fractions:
504/5040 + 5600/5040 = 504 + 5600/5040 = 6104/5040 - 6104/5040 simplified gives 109/90
- So, 8/80 + 70/63 = 109/90
In mixed form: 119/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/80+70/63 24/80+70/63 40/80+70/63 56/80+70/63