Add 72/5 and 90/42
1st number: 14 2/5, 2nd number: 2 6/42
72/5 + 90/42 is 579/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
72/5 = 72 × 42/5 × 42 = 3024/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Add the two like fractions:
3024/210 + 450/210 = 3024 + 450/210 = 3474/210 - 3474/210 simplified gives 579/35
- So, 72/5 + 90/42 = 579/35
In mixed form: 1619/35
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