Add 84/12 and 80/45
1st number: 7 0/12, 2nd number: 1 35/45
84/12 + 80/45 is 79/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
84/12 = 84 × 15/12 × 15 = 1260/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
80/45 = 80 × 4/45 × 4 = 320/180 - Add the two like fractions:
1260/180 + 320/180 = 1260 + 320/180 = 1580/180 - 1580/180 simplified gives 79/9
- So, 84/12 + 80/45 = 79/9
In mixed form: 87/9
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