Add 42/28 and 30/70
1st number: 1 14/28, 2nd number: 30/70
42/28 + 30/70 is 27/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
30/70 = 30 × 2/70 × 2 = 60/140 - Add the two like fractions:
210/140 + 60/140 = 210 + 60/140 = 270/140 - 270/140 simplified gives 27/14
- So, 42/28 + 30/70 = 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: 84/28+30/70 42/28+60/70 42/56+30/70 42/28+90/70 42/84+30/70