Add 3/84 and 70/30
1st number: 3/84, 2nd number: 2 10/30
3/84 + 70/30 is 199/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
70/30 = 70 × 14/30 × 14 = 980/420 - Add the two like fractions:
15/420 + 980/420 = 15 + 980/420 = 995/420 - 995/420 simplified gives 199/84
- So, 3/84 + 70/30 = 199/84
In mixed form: 231/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84+70/30 3/84+70/60 9/84+70/30 3/84+70/90 15/84+70/30 21/84+70/30