Add 42/4 and 40/10
1st number: 10 2/4, 2nd number: 4 0/10
42/4 + 40/10 is 29/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
42/4 = 42 × 5/4 × 5 = 210/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
40/10 = 40 × 2/10 × 2 = 80/20 - Add the two like fractions:
210/20 + 80/20 = 210 + 80/20 = 290/20 - 290/20 simplified gives 29/2
- So, 42/4 + 40/10 = 29/2
In mixed form: 141/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+40/10 42/4+80/10 42/8+40/10 42/4+40/20 42/12+40/10 42/4+40/30 42/20+40/10 42/4+40/50 42/28+40/10 42/4+40/70