Add 81/24 and 42/70
1st number: 3 9/24, 2nd number: 42/70
81/24 + 42/70 is 159/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
81/24 = 81 × 35/24 × 35 = 2835/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
42/70 = 42 × 12/70 × 12 = 504/840 - Add the two like fractions:
2835/840 + 504/840 = 2835 + 504/840 = 3339/840 - 3339/840 simplified gives 159/40
- So, 81/24 + 42/70 = 159/40
In mixed form: 339/40
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