Add 30/10 and 60/42
1st number: 3 0/10, 2nd number: 1 18/42
30/10 + 60/42 is 31/7.
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,
30/10 = 30 × 21/10 × 21 = 630/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
60/42 = 60 × 5/42 × 5 = 300/210 - Add the two like fractions:
630/210 + 300/210 = 630 + 300/210 = 930/210 - 930/210 simplified gives 31/7
- So, 30/10 + 60/42 = 31/7
In mixed form: 43/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+60/42 30/20+60/42 30/10+60/84 90/10+60/42 30/50+60/42 30/70+60/42