Add 15/90 and 2/14
15/90 + 2/14 is 13/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
2/14 = 2 × 45/14 × 45 = 90/630 - Add the two like fractions:
105/630 + 90/630 = 105 + 90/630 = 195/630 - 195/630 simplified gives 13/42
- So, 15/90 + 2/14 = 13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+2/14 15/90+4/14 15/90+2/28 45/90+2/14 15/90+6/14 15/90+2/42 75/90+2/14 15/90+10/14 15/90+2/70 15/90+2/98