Add 1/5 and 70/84
1/5 + 70/84 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
1/5 = 1 × 84/5 × 84 = 84/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Add the two like fractions:
84/420 + 350/420 = 84 + 350/420 = 434/420 - 434/420 simplified gives 31/30
- So, 1/5 + 70/84 = 31/30
In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5+70/84 1/10+70/84 3/5+70/84 1/15+70/84 1/25+70/84 7/5+70/84 1/35+70/84