Add 7/84 and 28/30
7/84 + 28/30 is 61/60.
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,
7/84 = 7 × 5/84 × 5 = 35/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
28/30 = 28 × 14/30 × 14 = 392/420 - Add the two like fractions:
35/420 + 392/420 = 35 + 392/420 = 427/420 - 427/420 simplified gives 61/60
- So, 7/84 + 28/30 = 61/60
In mixed form: 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+28/30 7/84+56/30 7/84+28/60 21/84+28/30 7/84+84/30 7/84+28/90 35/84+28/30 49/84+28/30