Add 60/20 and 84/45
1st number: 3 0/20, 2nd number: 1 39/45
60/20 + 84/45 is 73/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
60/20 = 60 × 9/20 × 9 = 540/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
84/45 = 84 × 4/45 × 4 = 336/180 - Add the two like fractions:
540/180 + 336/180 = 540 + 336/180 = 876/180 - 876/180 simplified gives 73/15
- So, 60/20 + 84/45 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+84/45 60/20+84/90