Add 3/21 and 40/6
1st number: 3/21, 2nd number: 6 4/6
3/21 + 40/6 is 143/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
3/21 = 3 × 2/21 × 2 = 6/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42 - Add the two like fractions:
6/42 + 280/42 = 6 + 280/42 = 286/42 - 286/42 simplified gives 143/21
- So, 3/21 + 40/6 = 143/21
In mixed form: 617/21
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