Add 40/30 and 42/5
1st number: 1 10/30, 2nd number: 8 2/5
40/30 + 42/5 is 146/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
40/30 = 40 × 1/30 × 1 = 40/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
42/5 = 42 × 6/5 × 6 = 252/30 - Add the two like fractions:
40/30 + 252/30 = 40 + 252/30 = 292/30 - 292/30 simplified gives 146/15
- So, 40/30 + 42/5 = 146/15
In mixed form: 911/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+42/5 40/30+84/5 40/60+42/5 40/30+42/10 40/90+42/5 40/30+42/15 40/30+42/25 40/30+42/35