Add 28/10 and 15/40
1st number: 2 8/10, 2nd number: 15/40
28/10 + 15/40 is 127/40.
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,
15/40 = 15 × 1/40 × 1 = 15/40 - Add the two like fractions:
112/40 + 15/40 = 112 + 15/40 = 127/40 - So, 28/10 + 15/40 = 127/40
In mixed form: 37/40
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