Add 18/12 and 54/48
1st number: 1 6/12, 2nd number: 1 6/48
18/12 + 54/48 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
18/12 = 18 × 4/12 × 4 = 72/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
54/48 = 54 × 1/48 × 1 = 54/48 - Add the two like fractions:
72/48 + 54/48 = 72 + 54/48 = 126/48 - 126/48 simplified gives 21/8
- So, 18/12 + 54/48 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+54/48 18/24+54/48 18/12+54/96 54/12+54/48 18/36+54/48 90/12+54/48 18/60+54/48 18/84+54/48