Add 70/49 and 80/30
1st number: 1 21/49, 2nd number: 2 20/30
70/49 + 80/30 is 86/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 49 × 30 = 1470,
70/49 = 70 × 30/49 × 30 = 2100/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
80/30 = 80 × 49/30 × 49 = 3920/1470 - Add the two like fractions:
2100/1470 + 3920/1470 = 2100 + 3920/1470 = 6020/1470 - 6020/1470 simplified gives 86/21
- So, 70/49 + 80/30 = 86/21
In mixed form: 42/21
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