Add 81/40 and 70/30
1st number: 2 1/40, 2nd number: 2 10/30
81/40 + 70/30 is 523/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 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 30 × 4 = 120,
70/30 = 70 × 4/30 × 4 = 280/120 - Add the two like fractions:
243/120 + 280/120 = 243 + 280/120 = 523/120 - So, 81/40 + 70/30 = 523/120
In mixed form: 443/120
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