Add 49/4 and 21/20
1st number: 12 1/4, 2nd number: 1 1/20
49/4 + 21/20 is 133/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
49/4 = 49 × 5/4 × 5 = 245/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Add the two like fractions:
245/20 + 21/20 = 245 + 21/20 = 266/20 - 266/20 simplified gives 133/10
- So, 49/4 + 21/20 = 133/10
In mixed form: 133/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/4+21/20 49/4+42/20 49/8+21/20 49/4+21/40 49/4+63/20 49/12+21/20 49/4+21/60 49/20+21/20 49/28+21/20