Add 3/5 and 81/40
1st number: 3/5, 2nd number: 2 1/40
3/5 + 81/40 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
3/5 = 3 × 8/5 × 8 = 24/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Add the two like fractions:
24/40 + 81/40 = 24 + 81/40 = 105/40 - 105/40 simplified gives 21/8
- So, 3/5 + 81/40 = 21/8
In mixed form: 25/8
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