Add 15/30 and 84/7
1st number: 15/30, 2nd number: 12 0/7
15/30 + 84/7 is 25/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
15/30 = 15 × 7/30 × 7 = 105/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
84/7 = 84 × 30/7 × 30 = 2520/210 - Add the two like fractions:
105/210 + 2520/210 = 105 + 2520/210 = 2625/210 - 2625/210 simplified gives 25/2
- So, 15/30 + 84/7 = 25/2
In mixed form: 121/2
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