Add 40/21 and 70/16
1st number: 1 19/21, 2nd number: 4 6/16
40/21 + 70/16 is 1055/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
40/21 = 40 × 16/21 × 16 = 640/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Add the two like fractions:
640/336 + 1470/336 = 640 + 1470/336 = 2110/336 - 2110/336 simplified gives 1055/168
- So, 40/21 + 70/16 = 1055/168
In mixed form: 647/168
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