Add 81/70 and 45/4
1st number: 1 11/70, 2nd number: 11 1/4
81/70 + 45/4 is 1737/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
81/70 = 81 × 2/70 × 2 = 162/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
45/4 = 45 × 35/4 × 35 = 1575/140 - Add the two like fractions:
162/140 + 1575/140 = 162 + 1575/140 = 1737/140 - So, 81/70 + 45/4 = 1737/140
In mixed form: 1257/140
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