Add 1/42 and 56/45
1st number: 1/42, 2nd number: 1 11/45
1/42 + 56/45 is 799/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
1/42 = 1 × 15/42 × 15 = 15/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
56/45 = 56 × 14/45 × 14 = 784/630 - Add the two like fractions:
15/630 + 784/630 = 15 + 784/630 = 799/630 - So, 1/42 + 56/45 = 799/630
In mixed form: 1169/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+56/45 1/84+56/45 1/42+56/90 3/42+56/45 5/42+56/45 7/42+56/45