Add 84/72 and 15/45
1st number: 1 12/72, 2nd number: 15/45
84/72 + 15/45 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
15/45 = 15 × 8/45 × 8 = 120/360 - Add the two like fractions:
420/360 + 120/360 = 420 + 120/360 = 540/360 - 540/360 simplified gives 3/2
- So, 84/72 + 15/45 = 3/2
In mixed form: 11/2
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