Add 40/15 and 16/90
1st number: 2 10/15, 2nd number: 16/90
40/15 + 16/90 is 128/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
40/15 = 40 × 6/15 × 6 = 240/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
16/90 = 16 × 1/90 × 1 = 16/90 - Add the two like fractions:
240/90 + 16/90 = 240 + 16/90 = 256/90 - 256/90 simplified gives 128/45
- So, 40/15 + 16/90 = 128/45
In mixed form: 238/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+16/90 40/15+32/90 40/30+16/90 40/15+48/90 40/45+16/90 40/15+80/90 40/75+16/90