Add 70/49 and 21/9
1st number: 1 21/49, 2nd number: 2 3/9
70/49 + 21/9 is 79/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
70/49 = 70 × 9/49 × 9 = 630/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
21/9 = 21 × 49/9 × 49 = 1029/441 - Add the two like fractions:
630/441 + 1029/441 = 630 + 1029/441 = 1659/441 - 1659/441 simplified gives 79/21
- So, 70/49 + 21/9 = 79/21
In mixed form: 316/21
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