Add 8/35 and 21/45
8/35 + 21/45 is 73/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
8/35 = 8 × 9/35 × 9 = 72/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
21/45 = 21 × 7/45 × 7 = 147/315 - Add the two like fractions:
72/315 + 147/315 = 72 + 147/315 = 219/315 - 219/315 simplified gives 73/105
- So, 8/35 + 21/45 = 73/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/35+21/45 8/35+42/45 8/70+21/45 8/35+21/90 24/35+21/45 8/35+63/45 40/35+21/45 56/35+21/45