Add 81/30 and 10/40
1st number: 2 21/30, 2nd number: 10/40
81/30 + 10/40 is 59/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
10/40 = 10 × 3/40 × 3 = 30/120 - Add the two like fractions:
324/120 + 30/120 = 324 + 30/120 = 354/120 - 354/120 simplified gives 59/20
- So, 81/30 + 10/40 = 59/20
In mixed form: 219/20
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