Add 28/10 and 81/40
1st number: 2 8/10, 2nd number: 2 1/40
28/10 + 81/40 is 193/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
28/10 = 28 × 4/10 × 4 = 112/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Add the two like fractions:
112/40 + 81/40 = 112 + 81/40 = 193/40 - So, 28/10 + 81/40 = 193/40
In mixed form: 433/40
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