Add 3/28 and 42/15
1st number: 3/28, 2nd number: 2 12/15
3/28 + 42/15 is 407/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
3/28 = 3 × 15/28 × 15 = 45/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
42/15 = 42 × 28/15 × 28 = 1176/420 - Add the two like fractions:
45/420 + 1176/420 = 45 + 1176/420 = 1221/420 - 1221/420 simplified gives 407/140
- So, 3/28 + 42/15 = 407/140
In mixed form: 2127/140
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