Add 4/84 and 42/10
1st number: 4/84, 2nd number: 4 2/10
4/84 + 42/10 is 446/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
42/10 = 42 × 42/10 × 42 = 1764/420 - Add the two like fractions:
20/420 + 1764/420 = 20 + 1764/420 = 1784/420 - 1784/420 simplified gives 446/105
- So, 4/84 + 42/10 = 446/105
In mixed form: 426/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+42/10 4/84+84/10 4/84+42/20 12/84+42/10 4/84+42/30 20/84+42/10 4/84+42/50 28/84+42/10 4/84+42/70