Add 28/12 and 40/35
1st number: 2 4/12, 2nd number: 1 5/35
28/12 + 40/35 is 73/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
28/12 = 28 × 35/12 × 35 = 980/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
40/35 = 40 × 12/35 × 12 = 480/420 - Add the two like fractions:
980/420 + 480/420 = 980 + 480/420 = 1460/420 - 1460/420 simplified gives 73/21
- So, 28/12 + 40/35 = 73/21
In mixed form: 310/21
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