Add 18/54 and 30/8
1st number: 18/54, 2nd number: 3 6/8
18/54 + 30/8 is 49/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
18/54 = 18 × 4/54 × 4 = 72/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
30/8 = 30 × 27/8 × 27 = 810/216 - Add the two like fractions:
72/216 + 810/216 = 72 + 810/216 = 882/216 - 882/216 simplified gives 49/12
- So, 18/54 + 30/8 = 49/12
In mixed form: 41/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54+30/8 18/54+60/8 18/54+30/16 18/54+90/8 18/54+30/24 90/54+30/8 18/54+30/40 18/54+30/56