Add 81/70 and 30/8
1st number: 1 11/70, 2nd number: 3 6/8
81/70 + 30/8 is 687/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
81/70 = 81 × 4/70 × 4 = 324/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
30/8 = 30 × 35/8 × 35 = 1050/280 - Add the two like fractions:
324/280 + 1050/280 = 324 + 1050/280 = 1374/280 - 1374/280 simplified gives 687/140
- So, 81/70 + 30/8 = 687/140
In mixed form: 4127/140
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