Add 7/45 and 21/8
1st number: 7/45, 2nd number: 2 5/8
7/45 + 21/8 is 1001/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
7/45 = 7 × 8/45 × 8 = 56/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
21/8 = 21 × 45/8 × 45 = 945/360 - Add the two like fractions:
56/360 + 945/360 = 56 + 945/360 = 1001/360 - So, 7/45 + 21/8 = 1001/360
In mixed form: 2281/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+21/8 7/45+42/8 7/90+21/8 7/45+21/16 21/45+21/8 7/45+63/8 7/45+21/24 35/45+21/8 7/45+21/40 49/45+21/8 7/45+21/56