Add 84/2 and 2/21
1st number: 42 0/2, 2nd number: 2/21
84/2 + 2/21 is 884/21.
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,
84/2 = 84 × 21/2 × 21 = 1764/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
2/21 = 2 × 2/21 × 2 = 4/42 - Add the two like fractions:
1764/42 + 4/42 = 1764 + 4/42 = 1768/42 - 1768/42 simplified gives 884/21
- So, 84/2 + 2/21 = 884/21
In mixed form: 422/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+4/21 84/4+2/21 84/2+2/42 84/2+6/21 84/6+2/21 84/2+2/63 84/2+10/21 84/10+2/21 84/2+14/21 84/14+2/21