Add 40/84 and 45/21
1st number: 40/84, 2nd number: 2 3/21
40/84 + 45/21 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
40/84 = 40 × 1/84 × 1 = 40/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
45/21 = 45 × 4/21 × 4 = 180/84 - Add the two like fractions:
40/84 + 180/84 = 40 + 180/84 = 220/84 - 220/84 simplified gives 55/21
- So, 40/84 + 45/21 = 55/21
In mixed form: 213/21
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