Add 70/56 and 84/42
1st number: 1 14/56, 2nd number: 2 0/42
70/56 + 84/42 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
70/56 = 70 × 3/56 × 3 = 210/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
84/42 = 84 × 4/42 × 4 = 336/168 - Add the two like fractions:
210/168 + 336/168 = 210 + 336/168 = 546/168 - 546/168 simplified gives 13/4
- So, 70/56 + 84/42 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: