Add 72/8 and 42/84
1st number: 9 0/8, 2nd number: 42/84
72/8 + 42/84 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
72/8 = 72 × 21/8 × 21 = 1512/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
42/84 = 42 × 2/84 × 2 = 84/168 - Add the two like fractions:
1512/168 + 84/168 = 1512 + 84/168 = 1596/168 - 1596/168 simplified gives 19/2
- So, 72/8 + 42/84 = 19/2
In mixed form: 91/2
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