Add 90/42 and 40/24
1st number: 2 6/42, 2nd number: 1 16/24
90/42 + 40/24 is 80/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
90/42 = 90 × 4/42 × 4 = 360/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
40/24 = 40 × 7/24 × 7 = 280/168 - Add the two like fractions:
360/168 + 280/168 = 360 + 280/168 = 640/168 - 640/168 simplified gives 80/21
- So, 90/42 + 40/24 = 80/21
In mixed form: 317/21
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