Add 72/12 and 42/45
1st number: 6 0/12, 2nd number: 42/45
72/12 + 42/45 is 104/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
72/12 = 72 × 15/12 × 15 = 1080/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
42/45 = 42 × 4/45 × 4 = 168/180 - Add the two like fractions:
1080/180 + 168/180 = 1080 + 168/180 = 1248/180 - 1248/180 simplified gives 104/15
- So, 72/12 + 42/45 = 104/15
In mixed form: 614/15
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