Add 84/4 and 6/42
1st number: 21 0/4, 2nd number: 6/42
84/4 + 6/42 is 148/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
84/4 = 84 × 21/4 × 21 = 1764/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
6/42 = 6 × 2/42 × 2 = 12/84 - Add the two like fractions:
1764/84 + 12/84 = 1764 + 12/84 = 1776/84 - 1776/84 simplified gives 148/7
- So, 84/4 + 6/42 = 148/7
In mixed form: 211/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+12/42 84/8+6/42 84/4+6/84 84/4+18/42 84/12+6/42 84/4+30/42 84/20+6/42 84/28+6/42