Add 72/24 and 70/20
1st number: 3 0/24, 2nd number: 3 10/20
72/24 + 70/20 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
72/24 = 72 × 5/24 × 5 = 360/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
70/20 = 70 × 6/20 × 6 = 420/120 - Add the two like fractions:
360/120 + 420/120 = 360 + 420/120 = 780/120 - 780/120 simplified gives 13/2
- So, 72/24 + 70/20 = 13/2
In mixed form: 61/2
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