Add 20/5 and 72/16
1st number: 4 0/5, 2nd number: 4 8/16
20/5 + 72/16 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
20/5 = 20 × 16/5 × 16 = 320/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
72/16 = 72 × 5/16 × 5 = 360/80 - Add the two like fractions:
320/80 + 360/80 = 320 + 360/80 = 680/80 - 680/80 simplified gives 17/2
- So, 20/5 + 72/16 = 17/2
In mixed form: 81/2
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