Add 42/70 and 56/9
1st number: 42/70, 2nd number: 6 2/9
42/70 + 56/9 is 307/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
42/70 = 42 × 9/70 × 9 = 378/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
56/9 = 56 × 70/9 × 70 = 3920/630 - Add the two like fractions:
378/630 + 3920/630 = 378 + 3920/630 = 4298/630 - 4298/630 simplified gives 307/45
- So, 42/70 + 56/9 = 307/45
In mixed form: 637/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+56/9 42/70+56/18 42/70+56/27 42/70+56/45 42/70+56/63