Add 42/72 and 45/27
1st number: 42/72, 2nd number: 1 18/27
42/72 + 45/27 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
42/72 = 42 × 3/72 × 3 = 126/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
45/27 = 45 × 8/27 × 8 = 360/216 - Add the two like fractions:
126/216 + 360/216 = 126 + 360/216 = 486/216 - 486/216 simplified gives 9/4
- So, 42/72 + 45/27 = 9/4
In mixed form: 21/4
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