Add 42/20 and 54/72
1st number: 2 2/20, 2nd number: 54/72
42/20 + 54/72 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
42/20 = 42 × 18/20 × 18 = 756/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
54/72 = 54 × 5/72 × 5 = 270/360 - Add the two like fractions:
756/360 + 270/360 = 756 + 270/360 = 1026/360 - 1026/360 simplified gives 57/20
- So, 42/20 + 54/72 = 57/20
In mixed form: 217/20
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