Add 20/24 and 45/42
1st number: 20/24, 2nd number: 1 3/42
20/24 + 45/42 is 40/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
20/24 = 20 × 7/24 × 7 = 140/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
45/42 = 45 × 4/42 × 4 = 180/168 - Add the two like fractions:
140/168 + 180/168 = 140 + 180/168 = 320/168 - 320/168 simplified gives 40/21
- So, 20/24 + 45/42 = 40/21
In mixed form: 119/21
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