Add 90/2 and 42/72
1st number: 45 0/2, 2nd number: 42/72
90/2 + 42/72 is 547/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
90/2 = 90 × 36/2 × 36 = 3240/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
3240/72 + 42/72 = 3240 + 42/72 = 3282/72 - 3282/72 simplified gives 547/12
- So, 90/2 + 42/72 = 547/12
In mixed form: 457/12
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