Add 72/40 and 81/30
1st number: 1 32/40, 2nd number: 2 21/30
72/40 + 81/30 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120 - Add the two like fractions:
216/120 + 324/120 = 216 + 324/120 = 540/120 - 540/120 simplified gives 9/2
- So, 72/40 + 81/30 = 9/2
In mixed form: 41/2
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