Add 42/30 and 84/72
1st number: 1 12/30, 2nd number: 1 12/72
42/30 + 84/72 is 77/30.
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,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
504/360 + 420/360 = 504 + 420/360 = 924/360 - 924/360 simplified gives 77/30
- So, 42/30 + 84/72 = 77/30
In mixed form: 217/30
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