Add 70/28 and 18/7, Solve 2 14/28 + 2 4/7 as a fraction

Add 70/28 and 18/7

1^st number: 2 14/28, 2^nd number: 2 4/7

70/28 + 18/7 is 71/14.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 28 × 1 = 28,
70/28 = 70 × 1/28 × 1 = 70/28
Likewise, for the 2nd fraction, since 7 × 4 = 28,
18/7 = 18 × 4/7 × 4 = 72/28
Add the two like fractions:
70/28 + 72/28 = 70 + 72/28 = 142/28
142/28 simplified gives 71/14
So, 70/28 + 18/7 = 71/14
In mixed form: 51/14

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad