Add 45/48 and 70/72
45/48 + 70/72 is 275/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
45/48 = 45 × 3/48 × 3 = 135/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
70/72 = 70 × 2/72 × 2 = 140/144 - Add the two like fractions:
135/144 + 140/144 = 135 + 140/144 = 275/144 - So, 45/48 + 70/72 = 275/144
In mixed form: 1131/144
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