Add 30/15 and 54/16
1st number: 2 0/15, 2nd number: 3 6/16
30/15 + 54/16 is 43/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
30/15 = 30 × 16/15 × 16 = 480/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
54/16 = 54 × 15/16 × 15 = 810/240 - Add the two like fractions:
480/240 + 810/240 = 480 + 810/240 = 1290/240 - 1290/240 simplified gives 43/8
- So, 30/15 + 54/16 = 43/8
In mixed form: 53/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+54/16 30/15+54/32 90/15+54/16 30/45+54/16 30/15+54/48 30/75+54/16 30/15+54/80