Add 72/8 and 30/20
1st number: 9 0/8, 2nd number: 1 10/20
72/8 + 30/20 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
30/20 = 30 × 2/20 × 2 = 60/40 - Add the two like fractions:
360/40 + 60/40 = 360 + 60/40 = 420/40 - 420/40 simplified gives 21/2
- So, 72/8 + 30/20 = 21/2
In mixed form: 101/2
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