Add 84/20 and 84/72
1st number: 4 4/20, 2nd number: 1 12/72
84/20 + 84/72 is 161/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
84/20 = 84 × 18/20 × 18 = 1512/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
1512/360 + 420/360 = 1512 + 420/360 = 1932/360 - 1932/360 simplified gives 161/30
- So, 84/20 + 84/72 = 161/30
In mixed form: 511/30
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