Add 84/40 and 90/15
1st number: 2 4/40, 2nd number: 6 0/15
84/40 + 90/15 is 81/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
90/15 = 90 × 8/15 × 8 = 720/120 - Add the two like fractions:
252/120 + 720/120 = 252 + 720/120 = 972/120 - 972/120 simplified gives 81/10
- So, 84/40 + 90/15 = 81/10
In mixed form: 81/10
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