Add 4/70 and 40/84
4/70 + 40/84 is 8/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
4/70 = 4 × 6/70 × 6 = 24/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Add the two like fractions:
24/420 + 200/420 = 24 + 200/420 = 224/420 - 224/420 simplified gives 8/15
- So, 4/70 + 40/84 = 8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+40/84 4/70+80/84 12/70+40/84 20/70+40/84 28/70+40/84