Add 84/12 and 30/40
1st number: 7 0/12, 2nd number: 30/40
84/12 + 30/40 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
84/12 = 84 × 10/12 × 10 = 840/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Add the two like fractions:
840/120 + 90/120 = 840 + 90/120 = 930/120 - 930/120 simplified gives 31/4
- So, 84/12 + 30/40 = 31/4
In mixed form: 73/4
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