Add 30/15 and 12/84
1st number: 2 0/15, 2nd number: 12/84
30/15 + 12/84 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
30/15 = 30 × 28/15 × 28 = 840/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Add the two like fractions:
840/420 + 60/420 = 840 + 60/420 = 900/420 - 900/420 simplified gives 15/7
- So, 30/15 + 12/84 = 15/7
In mixed form: 21/7
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