Add 81/70 and 20/24
1st number: 1 11/70, 2nd number: 20/24
81/70 + 20/24 is 209/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
81/70 = 81 × 12/70 × 12 = 972/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
20/24 = 20 × 35/24 × 35 = 700/840 - Add the two like fractions:
972/840 + 700/840 = 972 + 700/840 = 1672/840 - 1672/840 simplified gives 209/105
- So, 81/70 + 20/24 = 209/105
In mixed form: 1104/105
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