Add 81/15 and 70/16
1st number: 5 6/15, 2nd number: 4 6/16
81/15 + 70/16 is 391/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
70/16 = 70 × 15/16 × 15 = 1050/240 - Add the two like fractions:
1296/240 + 1050/240 = 1296 + 1050/240 = 2346/240 - 2346/240 simplified gives 391/40
- So, 81/15 + 70/16 = 391/40
In mixed form: 931/40
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