Add 48/84 and 84/21
1st number: 48/84, 2nd number: 4 0/21
48/84 + 84/21 is 32/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
48/84 = 48 × 1/84 × 1 = 48/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
84/21 = 84 × 4/21 × 4 = 336/84 - Add the two like fractions:
48/84 + 336/84 = 48 + 336/84 = 384/84 - 384/84 simplified gives 32/7
- So, 48/84 + 84/21 = 32/7
In mixed form: 44/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/84+84/21 48/84+84/42 48/84+84/63