Add 1/42 and 32/20
1st number: 1/42, 2nd number: 1 12/20
1/42 + 32/20 is 341/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
1/42 = 1 × 10/42 × 10 = 10/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
32/20 = 32 × 21/20 × 21 = 672/420 - Add the two like fractions:
10/420 + 672/420 = 10 + 672/420 = 682/420 - 682/420 simplified gives 341/210
- So, 1/42 + 32/20 = 341/210
In mixed form: 1131/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+32/20 1/42+64/20 1/84+32/20 1/42+32/40 3/42+32/20 1/42+96/20 1/42+32/60 5/42+32/20 7/42+32/20