Add 40/21 and 30/14
1st number: 1 19/21, 2nd number: 2 2/14
40/21 + 30/14 is 85/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 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 14 × 3 = 42,
30/14 = 30 × 3/14 × 3 = 90/42 - Add the two like fractions:
80/42 + 90/42 = 80 + 90/42 = 170/42 - 170/42 simplified gives 85/21
- So, 40/21 + 30/14 = 85/21
In mixed form: 41/21
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