Add 20/5 and 40/54
1st number: 4 0/5, 2nd number: 40/54
20/5 + 40/54 is 128/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
20/5 = 20 × 54/5 × 54 = 1080/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
40/54 = 40 × 5/54 × 5 = 200/270 - Add the two like fractions:
1080/270 + 200/270 = 1080 + 200/270 = 1280/270 - 1280/270 simplified gives 128/27
- So, 20/5 + 40/54 = 128/27
In mixed form: 420/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+40/54 20/5+80/54 20/10+40/54 60/5+40/54 20/15+40/54 20/25+40/54 20/35+40/54