Add 21/56 and 70/75
21/56 + 70/75 is 157/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 75 is 4200
Next, find the equivalent fraction of both fractional numbers with denominator 4200 - For the 1st fraction, since 56 × 75 = 4200,
21/56 = 21 × 75/56 × 75 = 1575/4200 - Likewise, for the 2nd fraction, since 75 × 56 = 4200,
70/75 = 70 × 56/75 × 56 = 3920/4200 - Add the two like fractions:
1575/4200 + 3920/4200 = 1575 + 3920/4200 = 5495/4200 - 5495/4200 simplified gives 157/120
- So, 21/56 + 70/75 = 157/120
In mixed form: 137/120
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