Add 54/72 and 45/30
1st number: 54/72, 2nd number: 1 15/30
54/72 + 45/30 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
54/72 = 54 × 5/72 × 5 = 270/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
45/30 = 45 × 12/30 × 12 = 540/360 - Add the two like fractions:
270/360 + 540/360 = 270 + 540/360 = 810/360 - 810/360 simplified gives 9/4
- So, 54/72 + 45/30 = 9/4
In mixed form: 21/4
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