Add 21/2 and 1/30
1st number: 10 1/2, 2nd number: 1/30
21/2 + 1/30 is 158/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
21/2 = 21 × 15/2 × 15 = 315/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
1/30 = 1 × 1/30 × 1 = 1/30 - Add the two like fractions:
315/30 + 1/30 = 315 + 1/30 = 316/30 - 316/30 simplified gives 158/15
- So, 21/2 + 1/30 = 158/15
In mixed form: 108/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+1/30 21/2+2/30 21/4+1/30 21/2+1/60 63/2+1/30 21/2+3/30 21/6+1/30 21/2+1/90 21/2+5/30 21/10+1/30 21/2+7/30 21/14+1/30