Add 54/15 and 20/16
1st number: 3 9/15, 2nd number: 1 4/16
54/15 + 20/16 is 97/20.
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,
54/15 = 54 × 16/15 × 16 = 864/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
20/16 = 20 × 15/16 × 15 = 300/240 - Add the two like fractions:
864/240 + 300/240 = 864 + 300/240 = 1164/240 - 1164/240 simplified gives 97/20
- So, 54/15 + 20/16 = 97/20
In mixed form: 417/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+40/16 54/30+20/16 54/15+20/32 54/15+60/16 54/45+20/16 54/15+20/48 54/75+20/16 54/15+20/80