Add 28/4 and 42/72
1st number: 7 0/4, 2nd number: 42/72
28/4 + 42/72 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
28/4 = 28 × 18/4 × 18 = 504/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
504/72 + 42/72 = 504 + 42/72 = 546/72 - 546/72 simplified gives 91/12
- So, 28/4 + 42/72 = 91/12
In mixed form: 77/12
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