Add 70/49 and 80/60
1st number: 1 21/49, 2nd number: 1 20/60
70/49 + 80/60 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 60 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 49 × 60 = 2940,
70/49 = 70 × 60/49 × 60 = 4200/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
80/60 = 80 × 49/60 × 49 = 3920/2940 - Add the two like fractions:
4200/2940 + 3920/2940 = 4200 + 3920/2940 = 8120/2940 - 8120/2940 simplified gives 58/21
- So, 70/49 + 80/60 = 58/21
In mixed form: 216/21
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