Add 30/35 and 7/84
30/35 + 7/84 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
30/35 = 30 × 12/35 × 12 = 360/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420 - Add the two like fractions:
360/420 + 35/420 = 360 + 35/420 = 395/420 - 395/420 simplified gives 79/84
- So, 30/35 + 7/84 = 79/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+7/84 30/35+14/84 30/70+7/84 90/35+7/84 30/35+21/84 30/35+35/84 30/35+49/84