Add 84/21 and 3/60
1st number: 4 0/21, 2nd number: 3/60
84/21 + 3/60 is 81/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
84/21 = 84 × 20/21 × 20 = 1680/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
3/60 = 3 × 7/60 × 7 = 21/420 - Add the two like fractions:
1680/420 + 21/420 = 1680 + 21/420 = 1701/420 - 1701/420 simplified gives 81/20
- So, 84/21 + 3/60 = 81/20
In mixed form: 41/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21+6/60 84/42+3/60 84/21+9/60 84/63+3/60 84/21+15/60 84/21+21/60