Add 84/20 and 2/28
1st number: 4 4/20, 2nd number: 2/28
84/20 + 2/28 is 299/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
84/20 = 84 × 7/20 × 7 = 588/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
2/28 = 2 × 5/28 × 5 = 10/140 - Add the two like fractions:
588/140 + 10/140 = 588 + 10/140 = 598/140 - 598/140 simplified gives 299/70
- So, 84/20 + 2/28 = 299/70
In mixed form: 419/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+4/28 84/40+2/28 84/20+2/56 84/20+6/28 84/60+2/28 84/20+2/84 84/20+10/28 84/20+14/28