Add 42/5 and 45/30
1st number: 8 2/5, 2nd number: 1 15/30
42/5 + 45/30 is 99/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
42/5 = 42 × 6/5 × 6 = 252/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
45/30 = 45 × 1/30 × 1 = 45/30 - Add the two like fractions:
252/30 + 45/30 = 252 + 45/30 = 297/30 - 297/30 simplified gives 99/10
- So, 42/5 + 45/30 = 99/10
In mixed form: 99/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+45/30 42/5+90/30 42/10+45/30 42/5+45/60 42/15+45/30 42/5+45/90 42/25+45/30 42/35+45/30