Add 7/72 and 45/40
1st number: 7/72, 2nd number: 1 5/40
7/72 + 45/40 is 11/9.
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,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Add the two like fractions:
35/360 + 405/360 = 35 + 405/360 = 440/360 - 440/360 simplified gives 11/9
- So, 7/72 + 45/40 = 11/9
In mixed form: 12/9
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