Add 10/2 and 5/21
1st number: 5 0/2, 2nd number: 5/21
10/2 + 5/21 is 110/21.
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,
10/2 = 10 × 21/2 × 21 = 210/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
5/21 = 5 × 2/21 × 2 = 10/42 - Add the two like fractions:
210/42 + 10/42 = 210 + 10/42 = 220/42 - 220/42 simplified gives 110/21
- So, 10/2 + 5/21 = 110/21
In mixed form: 55/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2+5/21 10/2+10/21 10/4+5/21 10/2+5/42 30/2+5/21 10/2+15/21 10/6+5/21 10/2+5/63 50/2+5/21 10/2+25/21 70/2+5/21 10/2+35/21 10/14+5/21