Add 42/2 and 40/15
1st number: 21 0/2, 2nd number: 2 10/15
42/2 + 40/15 is 71/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
42/2 = 42 × 15/2 × 15 = 630/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
40/15 = 40 × 2/15 × 2 = 80/30 - Add the two like fractions:
630/30 + 80/30 = 630 + 80/30 = 710/30 - 710/30 simplified gives 71/3
- So, 42/2 + 40/15 = 71/3
In mixed form: 232/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+40/15 42/2+80/15 42/4+40/15 42/2+40/30 42/6+40/15 42/2+40/45 42/10+40/15 42/2+40/75 42/14+40/15