Add 4/30 and 70/84
4/30 + 70/84 is 29/30.
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,
4/30 = 4 × 14/30 × 14 = 56/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Add the two like fractions:
56/420 + 350/420 = 56 + 350/420 = 406/420 - 406/420 simplified gives 29/30
- So, 4/30 + 70/84 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30+70/84 4/60+70/84 12/30+70/84 4/90+70/84 20/30+70/84 28/30+70/84