Add 42/2 and 15/70
1st number: 21 0/2, 2nd number: 15/70
42/2 + 15/70 is 297/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
42/2 = 42 × 35/2 × 35 = 1470/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Add the two like fractions:
1470/70 + 15/70 = 1470 + 15/70 = 1485/70 - 1485/70 simplified gives 297/14
- So, 42/2 + 15/70 = 297/14
In mixed form: 213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+15/70 42/2+30/70 42/4+15/70 42/2+45/70 42/6+15/70 42/2+75/70 42/10+15/70 42/14+15/70