Add 54/5 and 20/28
1st number: 10 4/5, 2nd number: 20/28
54/5 + 20/28 is 403/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
54/5 = 54 × 28/5 × 28 = 1512/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Add the two like fractions:
1512/140 + 100/140 = 1512 + 100/140 = 1612/140 - 1612/140 simplified gives 403/35
- So, 54/5 + 20/28 = 403/35
In mixed form: 1118/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5+40/28 54/10+20/28 54/5+20/56 54/5+60/28 54/15+20/28 54/5+20/84 54/25+20/28 54/35+20/28