Add 42/49 and 75/70
1st number: 42/49, 2nd number: 1 5/70
42/49 + 75/70 is 27/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
42/49 = 42 × 10/49 × 10 = 420/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
75/70 = 75 × 7/70 × 7 = 525/490 - Add the two like fractions:
420/490 + 525/490 = 420 + 525/490 = 945/490 - 945/490 simplified gives 27/14
- So, 42/49 + 75/70 = 27/14
In mixed form: 113/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49+75/70 42/98+75/70