Add 20/2 and 40/42
1st number: 10 0/2, 2nd number: 40/42
20/2 + 40/42 is 230/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
20/2 = 20 × 21/2 × 21 = 420/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Add the two like fractions:
420/42 + 40/42 = 420 + 40/42 = 460/42 - 460/42 simplified gives 230/21
- So, 20/2 + 40/42 = 230/21
In mixed form: 1020/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+40/42 20/2+80/42 20/4+40/42 20/2+40/84 60/2+40/42 20/6+40/42 20/10+40/42 20/14+40/42