Add 45/70 and 6/63
45/70 + 6/63 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
6/63 = 6 × 10/63 × 10 = 60/630 - Add the two like fractions:
405/630 + 60/630 = 405 + 60/630 = 465/630 - 465/630 simplified gives 31/42
- So, 45/70 + 6/63 = 31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+6/63 45/70+12/63 45/70+18/63 45/70+30/63 45/70+42/63