Add 81/70 and 45/32
1st number: 1 11/70, 2nd number: 1 13/32
81/70 + 45/32 is 2871/1120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 70 × 16 = 1120,
81/70 = 81 × 16/70 × 16 = 1296/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
45/32 = 45 × 35/32 × 35 = 1575/1120 - Add the two like fractions:
1296/1120 + 1575/1120 = 1296 + 1575/1120 = 2871/1120 - So, 81/70 + 45/32 = 2871/1120
In mixed form: 2631/1120
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