Add 20/5 and 72/10
1st number: 4 0/5, 2nd number: 7 2/10
20/5 + 72/10 is 56/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
20/5 = 20 × 2/5 × 2 = 40/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
72/10 = 72 × 1/10 × 1 = 72/10 - Add the two like fractions:
40/10 + 72/10 = 40 + 72/10 = 112/10 - 112/10 simplified gives 56/5
- So, 20/5 + 72/10 = 56/5
In mixed form: 111/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+72/10 20/10+72/10 20/5+72/20 60/5+72/10 20/15+72/10 20/5+72/30 20/25+72/10 20/5+72/50 20/35+72/10 20/5+72/70