Add 21/7 and 42/24
1st number: 3 0/7, 2nd number: 1 18/24
21/7 + 42/24 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
21/7 = 21 × 24/7 × 24 = 504/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Add the two like fractions:
504/168 + 294/168 = 504 + 294/168 = 798/168 - 798/168 simplified gives 19/4
- So, 21/7 + 42/24 = 19/4
In mixed form: 43/4
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