Add 49/28 and 42/70
1st number: 1 21/28, 2nd number: 42/70
49/28 + 42/70 is 47/20.
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,
49/28 = 49 × 5/28 × 5 = 245/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
42/70 = 42 × 2/70 × 2 = 84/140 - Add the two like fractions:
245/140 + 84/140 = 245 + 84/140 = 329/140 - 329/140 simplified gives 47/20
- So, 49/28 + 42/70 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+42/70 49/28+84/70 49/56+42/70 49/84+42/70