Add 49/8 and 15/21
1st number: 6 1/8, 2nd number: 15/21
49/8 + 15/21 is 383/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
49/8 = 49 × 21/8 × 21 = 1029/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
15/21 = 15 × 8/21 × 8 = 120/168 - Add the two like fractions:
1029/168 + 120/168 = 1029 + 120/168 = 1149/168 - 1149/168 simplified gives 383/56
- So, 49/8 + 15/21 = 383/56
In mixed form: 647/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/8+15/21 49/8+30/21 49/16+15/21 49/8+15/42 49/8+45/21 49/24+15/21 49/8+15/63 49/8+75/21 49/40+15/21 49/56+15/21