Add 72/30 and 90/42
1st number: 2 12/30, 2nd number: 2 6/42
72/30 + 90/42 is 159/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
72/30 = 72 × 7/30 × 7 = 504/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Add the two like fractions:
504/210 + 450/210 = 504 + 450/210 = 954/210 - 954/210 simplified gives 159/35
- So, 72/30 + 90/42 = 159/35
In mixed form: 419/35
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