Add 45/12 and 64/70
1st number: 3 9/12, 2nd number: 64/70
45/12 + 64/70 is 653/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
64/70 = 64 × 6/70 × 6 = 384/420 - Add the two like fractions:
1575/420 + 384/420 = 1575 + 384/420 = 1959/420 - 1959/420 simplified gives 653/140
- So, 45/12 + 64/70 = 653/140
In mixed form: 493/140
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