Add 81/40 and 30/15
1st number: 2 1/40, 2nd number: 2 0/15
81/40 + 30/15 is 161/40.
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,
81/40 = 81 × 3/40 × 3 = 243/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Add the two like fractions:
243/120 + 240/120 = 243 + 240/120 = 483/120 - 483/120 simplified gives 161/40
- So, 81/40 + 30/15 = 161/40
In mixed form: 41/40
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