Add 28/45 and 40/70
28/45 + 40/70 is 376/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Add the two like fractions:
392/630 + 360/630 = 392 + 360/630 = 752/630 - 752/630 simplified gives 376/315
- So, 28/45 + 40/70 = 376/315
In mixed form: 161/315
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