Add 45/63 and 27/70
45/63 + 27/70 is 11/10.
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,
45/63 = 45 × 10/63 × 10 = 450/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630 - Add the two like fractions:
450/630 + 243/630 = 450 + 243/630 = 693/630 - 693/630 simplified gives 11/10
- So, 45/63 + 27/70 = 11/10
In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+27/70 45/63+54/70 45/63+81/70