Add 84/72 and 40/30
1st number: 1 12/72, 2nd number: 1 10/30
84/72 + 40/30 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 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 30 × 12 = 360,
40/30 = 40 × 12/30 × 12 = 480/360 - Add the two like fractions:
420/360 + 480/360 = 420 + 480/360 = 900/360 - 900/360 simplified gives 5/2
- So, 84/72 + 40/30 = 5/2
In mixed form: 21/2
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