Add 80/63 and 36/70
1st number: 1 17/63, 2nd number: 36/70
80/63 + 36/70 is 562/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
80/63 = 80 × 10/63 × 10 = 800/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
36/70 = 36 × 9/70 × 9 = 324/630 - Add the two like fractions:
800/630 + 324/630 = 800 + 324/630 = 1124/630 - 1124/630 simplified gives 562/315
- So, 80/63 + 36/70 = 562/315
In mixed form: 1247/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63+72/70