Add 28/35 and 21/8
1st number: 28/35, 2nd number: 2 5/8
28/35 + 21/8 is 137/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
21/8 = 21 × 35/8 × 35 = 735/280 - Add the two like fractions:
224/280 + 735/280 = 224 + 735/280 = 959/280 - 959/280 simplified gives 137/40
- So, 28/35 + 21/8 = 137/40
In mixed form: 317/40
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