Add 25/15 and 14/42, Solve 1 10/15 + 14/42 as a fraction

Add 25/15 and 14/42

1^st number: 1 10/15, 2^nd number: 14/42

25/15 + 14/42 is 2/1.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
25/15 = 25 × 14/15 × 14 = 350/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
14/42 = 14 × 5/42 × 5 = 70/210
Add the two like fractions:
350/210 + 70/210 = 350 + 70/210 = 420/210
420/210 simplified gives 2/1
So, 25/15 + 14/42 = 2/1

MathStep (Works offline)

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