Add 21/3 and 42/8
1st number: 7 0/3, 2nd number: 5 2/8
21/3 + 42/8 is 49/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
42/8 = 42 × 3/8 × 3 = 126/24 - Add the two like fractions:
168/24 + 126/24 = 168 + 126/24 = 294/24 - 294/24 simplified gives 49/4
- So, 21/3 + 42/8 = 49/4
In mixed form: 121/4
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