Add 30/15 and 72/40
1st number: 2 0/15, 2nd number: 1 32/40
30/15 + 72/40 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Add the two like fractions:
240/120 + 216/120 = 240 + 216/120 = 456/120 - 456/120 simplified gives 19/5
- So, 30/15 + 72/40 = 19/5
In mixed form: 34/5
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