Add 42/20 and 72/54
1st number: 2 2/20, 2nd number: 1 18/54
42/20 + 72/54 is 103/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
72/54 = 72 × 10/54 × 10 = 720/540 - Add the two like fractions:
1134/540 + 720/540 = 1134 + 720/540 = 1854/540 - 1854/540 simplified gives 103/30
- So, 42/20 + 72/54 = 103/30
In mixed form: 313/30
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