Add 15/30 and 28/40
15/30 + 28/40 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
15/30 = 15 × 4/30 × 4 = 60/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
28/40 = 28 × 3/40 × 3 = 84/120 - Add the two like fractions:
60/120 + 84/120 = 60 + 84/120 = 144/120 - 144/120 simplified gives 6/5
- So, 15/30 + 28/40 = 6/5
In mixed form: 11/5
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