Add 60/84 and 45/20
1st number: 60/84, 2nd number: 2 5/20
60/84 + 45/20 is 83/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
60/84 = 60 × 5/84 × 5 = 300/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
45/20 = 45 × 21/20 × 21 = 945/420 - Add the two like fractions:
300/420 + 945/420 = 300 + 945/420 = 1245/420 - 1245/420 simplified gives 83/28
- So, 60/84 + 45/20 = 83/28
In mixed form: 227/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+90/20 60/84+45/40 60/84+45/60