Add 36/30 and 42/84
1st number: 1 6/30, 2nd number: 42/84
36/30 + 42/84 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
36/30 = 36 × 14/30 × 14 = 504/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Add the two like fractions:
504/420 + 210/420 = 504 + 210/420 = 714/420 - 714/420 simplified gives 17/10
- So, 36/30 + 42/84 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+42/84 36/60+42/84 36/90+42/84