Add 4/56 and 70/84
4/56 + 70/84 is 19/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
70/84 = 70 × 2/84 × 2 = 140/168 - Add the two like fractions:
12/168 + 140/168 = 12 + 140/168 = 152/168 - 152/168 simplified gives 19/21
- So, 4/56 + 70/84 = 19/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/56+70/84 12/56+70/84 20/56+70/84 28/56+70/84