Add 42/72 and 45/15
1st number: 42/72, 2nd number: 3 0/15
42/72 + 45/15 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
45/15 = 45 × 24/15 × 24 = 1080/360 - Add the two like fractions:
210/360 + 1080/360 = 210 + 1080/360 = 1290/360 - 1290/360 simplified gives 43/12
- So, 42/72 + 45/15 = 43/12
In mixed form: 37/12
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