Add 28/70 and 75/72
1st number: 28/70, 2nd number: 1 3/72
28/70 + 75/72 is 173/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
28/70 = 28 × 36/70 × 36 = 1008/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
75/72 = 75 × 35/72 × 35 = 2625/2520 - Add the two like fractions:
1008/2520 + 2625/2520 = 1008 + 2625/2520 = 3633/2520 - 3633/2520 simplified gives 173/120
- So, 28/70 + 75/72 = 173/120
In mixed form: 153/120
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