Add 18/5 and 54/72
1st number: 3 3/5, 2nd number: 54/72
18/5 + 54/72 is 87/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
18/5 = 18 × 72/5 × 72 = 1296/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
54/72 = 54 × 5/72 × 5 = 270/360 - Add the two like fractions:
1296/360 + 270/360 = 1296 + 270/360 = 1566/360 - 1566/360 simplified gives 87/20
- So, 18/5 + 54/72 = 87/20
In mixed form: 47/20
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