Add 81/70 and 90/16
1st number: 1 11/70, 2nd number: 5 10/16
81/70 + 90/16 is 1899/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
81/70 = 81 × 8/70 × 8 = 648/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
90/16 = 90 × 35/16 × 35 = 3150/560 - Add the two like fractions:
648/560 + 3150/560 = 648 + 3150/560 = 3798/560 - 3798/560 simplified gives 1899/280
- So, 81/70 + 90/16 = 1899/280
In mixed form: 6219/280
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