Add 72/16 and 84/20
1st number: 4 8/16, 2nd number: 4 4/20
72/16 + 84/20 is 87/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
72/16 = 72 × 5/16 × 5 = 360/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
84/20 = 84 × 4/20 × 4 = 336/80 - Add the two like fractions:
360/80 + 336/80 = 360 + 336/80 = 696/80 - 696/80 simplified gives 87/10
- So, 72/16 + 84/20 = 87/10
In mixed form: 87/10
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