Add 81/70 and 45/24
1st number: 1 11/70, 2nd number: 1 21/24
81/70 + 45/24 is 849/280.
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,
45/24 = 45 × 35/24 × 35 = 1575/840 - Add the two like fractions:
972/840 + 1575/840 = 972 + 1575/840 = 2547/840 - 2547/840 simplified gives 849/280
- So, 81/70 + 45/24 = 849/280
In mixed form: 39/280
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