Add 54/15 and 2/40
1st number: 3 9/15, 2nd number: 2/40
54/15 + 2/40 is 73/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
54/15 = 54 × 8/15 × 8 = 432/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
2/40 = 2 × 3/40 × 3 = 6/120 - Add the two like fractions:
432/120 + 6/120 = 432 + 6/120 = 438/120 - 438/120 simplified gives 73/20
- So, 54/15 + 2/40 = 73/20
In mixed form: 313/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+4/40 54/30+2/40 54/15+2/80 54/15+6/40 54/45+2/40 54/15+10/40 54/75+2/40 54/15+14/40