Add 36/10 and 20/42
1st number: 3 6/10, 2nd number: 20/42
36/10 + 20/42 is 428/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
36/10 = 36 × 21/10 × 21 = 756/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Add the two like fractions:
756/210 + 100/210 = 756 + 100/210 = 856/210 - 856/210 simplified gives 428/105
- So, 36/10 + 20/42 = 428/105
In mixed form: 48/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/10+20/42 36/10+40/42 36/20+20/42 36/10+20/84 36/10+60/42 36/30+20/42 36/50+20/42 36/70+20/42