Add 20/8 and 30/28
1st number: 2 4/8, 2nd number: 1 2/28
20/8 + 30/28 is 25/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
30/28 = 30 × 2/28 × 2 = 60/56 - Add the two like fractions:
140/56 + 60/56 = 140 + 60/56 = 200/56 - 200/56 simplified gives 25/7
- So, 20/8 + 30/28 = 25/7
In mixed form: 34/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+30/28 20/8+60/28 20/16+30/28 20/8+30/56 60/8+30/28 20/8+90/28 20/24+30/28 20/8+30/84 20/40+30/28 20/56+30/28