Add 72/18 and 3/8
1st number: 4 0/18, 2nd number: 3/8
72/18 + 3/8 is 35/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
72/18 = 72 × 4/18 × 4 = 288/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
3/8 = 3 × 9/8 × 9 = 27/72 - Add the two like fractions:
288/72 + 27/72 = 288 + 27/72 = 315/72 - 315/72 simplified gives 35/8
- So, 72/18 + 3/8 = 35/8
In mixed form: 43/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+6/8 72/36+3/8 72/18+3/16 72/18+9/8 72/54+3/8 72/18+3/24 72/18+15/8 72/90+3/8 72/18+3/40 72/18+21/8 72/18+3/56