Add 20/15 and 72/40
1st number: 1 5/15, 2nd number: 1 32/40
20/15 + 72/40 is 47/15.
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,
20/15 = 20 × 8/15 × 8 = 160/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Add the two like fractions:
160/120 + 216/120 = 160 + 216/120 = 376/120 - 376/120 simplified gives 47/15
- So, 20/15 + 72/40 = 47/15
In mixed form: 32/15
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