Add 75/72 and 81/40
1st number: 1 3/72, 2nd number: 2 1/40
75/72 + 81/40 is 46/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
75/72 = 75 × 5/72 × 5 = 375/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
81/40 = 81 × 9/40 × 9 = 729/360 - Add the two like fractions:
375/360 + 729/360 = 375 + 729/360 = 1104/360 - 1104/360 simplified gives 46/15
- So, 75/72 + 81/40 = 46/15
In mixed form: 31/15
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