Add 4/21 and 40/4
1st number: 4/21, 2nd number: 10 0/4
4/21 + 40/4 is 214/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
4/21 = 4 × 4/21 × 4 = 16/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
40/4 = 40 × 21/4 × 21 = 840/84 - Add the two like fractions:
16/84 + 840/84 = 16 + 840/84 = 856/84 - 856/84 simplified gives 214/21
- So, 4/21 + 40/4 = 214/21
In mixed form: 104/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+40/4 4/21+80/4 4/42+40/4 4/21+40/8 12/21+40/4 4/63+40/4 4/21+40/12 20/21+40/4 4/21+40/20 28/21+40/4 4/21+40/28