Add 5/20 and 1/42
5/20 + 1/42 is 23/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
5/20 = 5 × 21/20 × 21 = 105/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
1/42 = 1 × 10/42 × 10 = 10/420 - Add the two like fractions:
105/420 + 10/420 = 105 + 10/420 = 115/420 - 115/420 simplified gives 23/84
- So, 5/20 + 1/42 = 23/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+1/42 5/20+2/42 5/40+1/42 5/20+1/84 15/20+1/42 5/20+3/42 5/60+1/42 25/20+1/42 5/20+5/42 35/20+1/42 5/20+7/42