Add 28/4 and 18/30
1st number: 7 0/4, 2nd number: 18/30
28/4 + 18/30 is 38/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
28/4 = 28 × 15/4 × 15 = 420/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Add the two like fractions:
420/60 + 36/60 = 420 + 36/60 = 456/60 - 456/60 simplified gives 38/5
- So, 28/4 + 18/30 = 38/5
In mixed form: 73/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+18/30 28/4+36/30 28/8+18/30 28/4+18/60 84/4+18/30 28/4+54/30 28/12+18/30 28/4+18/90 28/4+90/30 28/20+18/30