Add 40/16 and 70/21
1st number: 2 8/16, 2nd number: 3 7/21
40/16 + 70/21 is 35/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
40/16 = 40 × 21/16 × 21 = 840/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
70/21 = 70 × 16/21 × 16 = 1120/336 - Add the two like fractions:
840/336 + 1120/336 = 840 + 1120/336 = 1960/336 - 1960/336 simplified gives 35/6
- So, 40/16 + 70/21 = 35/6
In mixed form: 55/6
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