Add 42/30 and 40/10
1st number: 1 12/30, 2nd number: 4 0/10
42/30 + 40/10 is 27/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
40/10 = 40 × 3/10 × 3 = 120/30 - Add the two like fractions:
42/30 + 120/30 = 42 + 120/30 = 162/30 - 162/30 simplified gives 27/5
- So, 42/30 + 40/10 = 27/5
In mixed form: 52/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+40/10 42/30+80/10 42/60+40/10 42/30+40/20 42/90+40/10 42/30+40/30 42/30+40/50 42/30+40/70