Add 42/30 and 18/72
1st number: 1 12/30, 2nd number: 18/72
42/30 + 18/72 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
42/30 = 42 × 12/30 × 12 = 504/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Add the two like fractions:
504/360 + 90/360 = 504 + 90/360 = 594/360 - 594/360 simplified gives 33/20
- So, 42/30 + 18/72 = 33/20
In mixed form: 113/20
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