Add 15/30 and 70/40
1st number: 15/30, 2nd number: 1 30/40
15/30 + 70/40 is 9/4.
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,
70/40 = 70 × 3/40 × 3 = 210/120 - Add the two like fractions:
60/120 + 210/120 = 60 + 210/120 = 270/120 - 270/120 simplified gives 9/4
- So, 15/30 + 70/40 = 9/4
In mixed form: 21/4
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