Add 21/75 and 12/70
21/75 + 12/70 is 79/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
21/75 = 21 × 14/75 × 14 = 294/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
12/70 = 12 × 15/70 × 15 = 180/1050 - Add the two like fractions:
294/1050 + 180/1050 = 294 + 180/1050 = 474/1050 - 474/1050 simplified gives 79/175
- So, 21/75 + 12/70 = 79/175
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