Add 40/21 and 9/6
1st number: 1 19/21, 2nd number: 1 3/6
40/21 + 9/6 is 143/42.
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,
40/21 = 40 × 2/21 × 2 = 80/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
9/6 = 9 × 7/6 × 7 = 63/42 - Add the two like fractions:
80/42 + 63/42 = 80 + 63/42 = 143/42 - So, 40/21 + 9/6 = 143/42
In mixed form: 317/42
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