Add 3/45 and 56/70
3/45 + 56/70 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
3/45 = 3 × 14/45 × 14 = 42/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
56/70 = 56 × 9/70 × 9 = 504/630 - Add the two like fractions:
42/630 + 504/630 = 42 + 504/630 = 546/630 - 546/630 simplified gives 13/15
- So, 3/45 + 56/70 = 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45+56/70 3/90+56/70 9/45+56/70 15/45+56/70 21/45+56/70