Add 18/5 and 30/42
1st number: 3 3/5, 2nd number: 30/42
18/5 + 30/42 is 151/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
18/5 = 18 × 42/5 × 42 = 756/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210 - Add the two like fractions:
756/210 + 150/210 = 756 + 150/210 = 906/210 - 906/210 simplified gives 151/35
- So, 18/5 + 30/42 = 151/35
In mixed form: 411/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+30/42 18/5+60/42 18/10+30/42 18/5+30/84 54/5+30/42 18/5+90/42 18/15+30/42 90/5+30/42 18/25+30/42 18/35+30/42