Add 15/70 and 16/28
15/70 + 16/28 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
16/28 = 16 × 5/28 × 5 = 80/140 - Add the two like fractions:
30/140 + 80/140 = 30 + 80/140 = 110/140 - 110/140 simplified gives 11/14
- So, 15/70 + 16/28 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70+16/28 15/70+32/28 15/70+16/56 45/70+16/28 15/70+48/28 15/70+16/84 75/70+16/28 15/70+80/28