Add 20/2 and 48/21
1st number: 10 0/2, 2nd number: 2 6/21
20/2 + 48/21 is 86/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
20/2 = 20 × 21/2 × 21 = 420/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
48/21 = 48 × 2/21 × 2 = 96/42 - Add the two like fractions:
420/42 + 96/42 = 420 + 96/42 = 516/42 - 516/42 simplified gives 86/7
- So, 20/2 + 48/21 = 86/7
In mixed form: 122/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+48/21 20/2+96/21 20/4+48/21 20/2+48/42 60/2+48/21 20/6+48/21 20/2+48/63 20/10+48/21 20/14+48/21