Add 42/2 and 40/10
1st number: 21 0/2, 2nd number: 4 0/10
42/2 + 40/10 is 25/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
42/2 = 42 × 5/2 × 5 = 210/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
40/10 = 40 × 1/10 × 1 = 40/10 - Add the two like fractions:
210/10 + 40/10 = 210 + 40/10 = 250/10 - 250/10 simplified gives 25/1
- So, 42/2 + 40/10 = 25/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+40/10 42/2+80/10 42/4+40/10 42/2+40/20 42/6+40/10 42/2+40/30 42/10+40/10 42/2+40/50 42/14+40/10 42/2+40/70