Add 84/4 and 80/72
1st number: 21 0/4, 2nd number: 1 8/72
84/4 + 80/72 is 199/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
84/4 = 84 × 18/4 × 18 = 1512/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
80/72 = 80 × 1/72 × 1 = 80/72 - Add the two like fractions:
1512/72 + 80/72 = 1512 + 80/72 = 1592/72 - 1592/72 simplified gives 199/9
- So, 84/4 + 80/72 = 199/9
In mixed form: 221/9
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