Add 21/35 and 12/8
1st number: 21/35, 2nd number: 1 4/8
21/35 + 12/8 is 21/10.
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,
21/35 = 21 × 8/35 × 8 = 168/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
12/8 = 12 × 35/8 × 35 = 420/280 - Add the two like fractions:
168/280 + 420/280 = 168 + 420/280 = 588/280 - 588/280 simplified gives 21/10
- So, 21/35 + 12/8 = 21/10
In mixed form: 21/10
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