Add 10/30 and 42/10
1st number: 10/30, 2nd number: 4 2/10
10/30 + 42/10 is 68/15.
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,
10/30 = 10 × 1/30 × 1 = 10/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
42/10 = 42 × 3/10 × 3 = 126/30 - Add the two like fractions:
10/30 + 126/30 = 10 + 126/30 = 136/30 - 136/30 simplified gives 68/15
- So, 10/30 + 42/10 = 68/15
In mixed form: 48/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30+42/10 10/30+84/10 10/60+42/10 10/30+42/20 10/90+42/10 10/30+42/30 50/30+42/10 10/30+42/50 70/30+42/10 10/30+42/70