Add 21/8 and 4/35
1st number: 2 5/8, 2nd number: 4/35
21/8 + 4/35 is 767/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
21/8 = 21 × 35/8 × 35 = 735/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
4/35 = 4 × 8/35 × 8 = 32/280 - Add the two like fractions:
735/280 + 32/280 = 735 + 32/280 = 767/280 - So, 21/8 + 4/35 = 767/280
In mixed form: 2207/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+4/35 21/8+8/35 21/16+4/35 21/8+4/70 63/8+4/35 21/8+12/35 21/24+4/35 21/8+20/35 21/40+4/35 21/8+28/35 21/56+4/35