Add 20/6 and 72/40
1st number: 3 2/6, 2nd number: 1 32/40
20/6 + 72/40 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
20/6 = 20 × 20/6 × 20 = 400/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Add the two like fractions:
400/120 + 216/120 = 400 + 216/120 = 616/120 - 616/120 simplified gives 77/15
- So, 20/6 + 72/40 = 77/15
In mixed form: 52/15
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