Add 42/15 and 8/25
1st number: 2 12/15, 2nd number: 8/25
42/15 + 8/25 is 78/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
42/15 = 42 × 5/15 × 5 = 210/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
8/25 = 8 × 3/25 × 3 = 24/75 - Add the two like fractions:
210/75 + 24/75 = 210 + 24/75 = 234/75 - 234/75 simplified gives 78/25
- So, 42/15 + 8/25 = 78/25
In mixed form: 33/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+8/25 42/15+16/25 42/30+8/25 42/15+8/50 42/15+24/25 42/45+8/25 42/15+8/75 42/15+40/25 42/75+8/25 42/15+56/25