Add 45/21 and 8/84
1st number: 2 3/21, 2nd number: 8/84
45/21 + 8/84 is 47/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
45/21 = 45 × 4/21 × 4 = 180/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
8/84 = 8 × 1/84 × 1 = 8/84 - Add the two like fractions:
180/84 + 8/84 = 180 + 8/84 = 188/84 - 188/84 simplified gives 47/21
- So, 45/21 + 8/84 = 47/21
In mixed form: 25/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+8/84 45/21+16/84 45/42+8/84 45/21+24/84 45/63+8/84 45/21+40/84 45/21+56/84