Add 42/15 and 35/45
1st number: 2 12/15, 2nd number: 35/45
42/15 + 35/45 is 161/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
35/45 = 35 × 1/45 × 1 = 35/45 - Add the two like fractions:
126/45 + 35/45 = 126 + 35/45 = 161/45 - So, 42/15 + 35/45 = 161/45
In mixed form: 326/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+35/45 42/15+70/45 42/30+35/45 42/15+35/90 42/45+35/45 42/75+35/45