Add 18/84 and 72/7
1st number: 18/84, 2nd number: 10 2/7
18/84 + 72/7 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
72/7 = 72 × 12/7 × 12 = 864/84 - Add the two like fractions:
18/84 + 864/84 = 18 + 864/84 = 882/84 - 882/84 simplified gives 21/2
- So, 18/84 + 72/7 = 21/2
In mixed form: 101/2
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