Add 15/10 and 30/40
1st number: 1 5/10, 2nd number: 30/40
15/10 + 30/40 is 9/4.
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,
15/10 = 15 × 4/10 × 4 = 60/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Add the two like fractions:
60/40 + 30/40 = 60 + 30/40 = 90/40 - 90/40 simplified gives 9/4
- So, 15/10 + 30/40 = 9/4
In mixed form: 21/4
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